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Finding the Fourth Proportional to 71,565.96, 98,761.44 and 39,301.96

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Solution

The fourth proportional to 71,565.96, 98,761.44 and 39,301.96 is: 54,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,565.96 : 98,761.44 = 39,301.96 : x
  2. Step 2: Convert to fraction form
    71,565.96/98,761.44 = 39,301.96/x
  3. Step 3: Cross multiply
    71,565.96x = 98,761.44 × 39,301.96
  4. Step 4: Simplify right side
    71,565.96x = 3,881,518,164.42
  5. Step 5: Solve for x
    x = 3,881,518,164.42/71,565.96
  6. Step 6: Final answer
    x = 54,236.93

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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.