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Finding the Fourth Proportional to 72,603.28, 108,854.16 and 32,057.02

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Solution

The fourth proportional to 72,603.28, 108,854.16 and 32,057.02 is: 48,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,603.28 : 108,854.16 = 32,057.02 : x
  2. Step 2: Convert to fraction form
    72,603.28/108,854.16 = 32,057.02/x
  3. Step 3: Cross multiply
    72,603.28x = 108,854.16 × 32,057.02
  4. Step 4: Simplify right side
    72,603.28x = 3,489,539,984.20
  5. Step 5: Solve for x
    x = 3,489,539,984.20/72,603.28
  6. Step 6: Final answer
    x = 48,063.12

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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.