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Finding the Fourth Proportional to 71,615.92, 107,386.98 and 32,139.19

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Solution

The fourth proportional to 71,615.92, 107,386.98 and 32,139.19 is: 48,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,615.92 : 107,386.98 = 32,139.19 : x
  2. Step 2: Convert to fraction form
    71,615.92/107,386.98 = 32,139.19/x
  3. Step 3: Cross multiply
    71,615.92x = 107,386.98 × 32,139.19
  4. Step 4: Simplify right side
    71,615.92x = 3,451,330,553.75
  5. Step 5: Solve for x
    x = 3,451,330,553.75/71,615.92
  6. Step 6: Final answer
    x = 48,192.23

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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.