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Finding the Fourth Proportional to 74,005.43, 110,929.32 and 52,881.44

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Solution

The fourth proportional to 74,005.43, 110,929.32 and 52,881.44 is: 79,265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,005.43 : 110,929.32 = 52,881.44 : x
  2. Step 2: Convert to fraction form
    74,005.43/110,929.32 = 52,881.44/x
  3. Step 3: Cross multiply
    74,005.43x = 110,929.32 × 52,881.44
  4. Step 4: Simplify right side
    74,005.43x = 5,866,101,625.17
  5. Step 5: Solve for x
    x = 5,866,101,625.17/74,005.43
  6. Step 6: Final answer
    x = 79,265.83

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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.