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Finding the Fourth Proportional to 60,165.74, 90,149.97 and 42,604.04

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Solution

The fourth proportional to 60,165.74, 90,149.97 and 42,604.04 is: 63,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,165.74 : 90,149.97 = 42,604.04 : x
  2. Step 2: Convert to fraction form
    60,165.74/90,149.97 = 42,604.04/x
  3. Step 3: Cross multiply
    60,165.74x = 90,149.97 × 42,604.04
  4. Step 4: Simplify right side
    60,165.74x = 3,840,752,927.88
  5. Step 5: Solve for x
    x = 3,840,752,927.88/60,165.74
  6. Step 6: Final answer
    x = 63,836.21

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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.