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Finding the Fourth Proportional to 110,515.80, 165,773.70 and 82,867.80

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Solution

The fourth proportional to 110,515.80, 165,773.70 and 82,867.80 is: 124,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,515.80 : 165,773.70 = 82,867.80 : x
  2. Step 2: Convert to fraction form
    110,515.80/165,773.70 = 82,867.80/x
  3. Step 3: Cross multiply
    110,515.80x = 165,773.70 × 82,867.80
  4. Step 4: Simplify right side
    110,515.80x = 13,737,301,816.86
  5. Step 5: Solve for x
    x = 13,737,301,816.86/110,515.80
  6. Step 6: Final answer
    x = 124,301.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.