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Finding the Fourth Proportional to 71,062.47, 106,649.40 and 49,575.45

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Solution

The fourth proportional to 71,062.47, 106,649.40 and 49,575.45 is: 74,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.47 : 106,649.40 = 49,575.45 : x
  2. Step 2: Convert to fraction form
    71,062.47/106,649.40 = 49,575.45/x
  3. Step 3: Cross multiply
    71,062.47x = 106,649.40 × 49,575.45
  4. Step 4: Simplify right side
    71,062.47x = 5,287,192,397.17
  5. Step 5: Solve for x
    x = 5,287,192,397.17/71,062.47
  6. Step 6: Final answer
    x = 74,402.03

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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.