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Finding the Fourth Proportional to 72,059.43, 108,158.87 and 34,645.33

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Solution

The fourth proportional to 72,059.43, 108,158.87 and 34,645.33 is: 52,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,059.43 : 108,158.87 = 34,645.33 : x
  2. Step 2: Convert to fraction form
    72,059.43/108,158.87 = 34,645.33/x
  3. Step 3: Cross multiply
    72,059.43x = 108,158.87 × 34,645.33
  4. Step 4: Simplify right side
    72,059.43x = 3,747,199,743.58
  5. Step 5: Solve for x
    x = 3,747,199,743.58/72,059.43
  6. Step 6: Final answer
    x = 52,001.52

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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.