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Finding the Fourth Proportional to 71,476.92, 98,649.96 and 39,656.06

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Solution

The fourth proportional to 71,476.92, 98,649.96 and 39,656.06 is: 54,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,476.92 : 98,649.96 = 39,656.06 : x
  2. Step 2: Convert to fraction form
    71,476.92/98,649.96 = 39,656.06/x
  3. Step 3: Cross multiply
    71,476.92x = 98,649.96 × 39,656.06
  4. Step 4: Simplify right side
    71,476.92x = 3,912,068,732.76
  5. Step 5: Solve for x
    x = 3,912,068,732.76/71,476.92
  6. Step 6: Final answer
    x = 54,731.92

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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.