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Finding the Fourth Proportional to 74,691.72, 112,061.88 and 35,254.44

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Solution

The fourth proportional to 74,691.72, 112,061.88 and 35,254.44 is: 52,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.72 : 112,061.88 = 35,254.44 : x
  2. Step 2: Convert to fraction form
    74,691.72/112,061.88 = 35,254.44/x
  3. Step 3: Cross multiply
    74,691.72x = 112,061.88 × 35,254.44
  4. Step 4: Simplify right side
    74,691.72x = 3,950,678,824.75
  5. Step 5: Solve for x
    x = 3,950,678,824.75/74,691.72
  6. Step 6: Final answer
    x = 52,893.13

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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.