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Finding the Fourth Proportional to 71,854.88, 99,124.08 and 48,013.52

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Solution

The fourth proportional to 71,854.88, 99,124.08 and 48,013.52 is: 66,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,854.88 : 99,124.08 = 48,013.52 : x
  2. Step 2: Convert to fraction form
    71,854.88/99,124.08 = 48,013.52/x
  3. Step 3: Cross multiply
    71,854.88x = 99,124.08 × 48,013.52
  4. Step 4: Simplify right side
    71,854.88x = 4,759,295,997.56
  5. Step 5: Solve for x
    x = 4,759,295,997.56/71,854.88
  6. Step 6: Final answer
    x = 66,234.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.