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Finding the Fourth Proportional to 110,412.36, 152,425.80 and 65,105.10

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Solution

The fourth proportional to 110,412.36, 152,425.80 and 65,105.10 is: 89,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,412.36 : 152,425.80 = 65,105.10 : x
  2. Step 2: Convert to fraction form
    110,412.36/152,425.80 = 65,105.10/x
  3. Step 3: Cross multiply
    110,412.36x = 152,425.80 × 65,105.10
  4. Step 4: Simplify right side
    110,412.36x = 9,923,696,951.58
  5. Step 5: Solve for x
    x = 9,923,696,951.58/110,412.36
  6. Step 6: Final answer
    x = 89,878.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.