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Finding the Fourth Proportional to 110,711.97, 165,210.98 and 98,898.21

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Solution

The fourth proportional to 110,711.97, 165,210.98 and 98,898.21 is: 147,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,711.97 : 165,210.98 = 98,898.21 : x
  2. Step 2: Convert to fraction form
    110,711.97/165,210.98 = 98,898.21/x
  3. Step 3: Cross multiply
    110,711.97x = 165,210.98 × 98,898.21
  4. Step 4: Simplify right side
    110,711.97x = 16,339,070,441.59
  5. Step 5: Solve for x
    x = 16,339,070,441.59/110,711.97
  6. Step 6: Final answer
    x = 147,581.79

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Half scale
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Double scale
Find fourth proportional to 110,712.97, 165,212.47 and 98,899.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.