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Finding the Fourth Proportional to 71,316.46, 98,414.46 and 39,049.66

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Solution

The fourth proportional to 71,316.46, 98,414.46 and 39,049.66 is: 53,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.46 : 98,414.46 = 39,049.66 : x
  2. Step 2: Convert to fraction form
    71,316.46/98,414.46 = 39,049.66/x
  3. Step 3: Cross multiply
    71,316.46x = 98,414.46 × 39,049.66
  4. Step 4: Simplify right side
    71,316.46x = 3,843,051,202.08
  5. Step 5: Solve for x
    x = 3,843,051,202.08/71,316.46
  6. Step 6: Final answer
    x = 53,887.30

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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.