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Finding the Fourth Proportional to 66,874.97, 100,276.22 and 29,391.16

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Solution

The fourth proportional to 66,874.97, 100,276.22 and 29,391.16 is: 44,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,874.97 : 100,276.22 = 29,391.16 : x
  2. Step 2: Convert to fraction form
    66,874.97/100,276.22 = 29,391.16/x
  3. Step 3: Cross multiply
    66,874.97x = 100,276.22 × 29,391.16
  4. Step 4: Simplify right side
    66,874.97x = 2,947,233,924.83
  5. Step 5: Solve for x
    x = 2,947,233,924.83/66,874.97
  6. Step 6: Final answer
    x = 44,070.81

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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.