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Finding the Fourth Proportional to 69,251.48, 95,551.62 and 42,391.88

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Solution

The fourth proportional to 69,251.48, 95,551.62 and 42,391.88 is: 58,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,251.48 : 95,551.62 = 42,391.88 : x
  2. Step 2: Convert to fraction form
    69,251.48/95,551.62 = 42,391.88/x
  3. Step 3: Cross multiply
    69,251.48x = 95,551.62 × 42,391.88
  4. Step 4: Simplify right side
    69,251.48x = 4,050,612,808.85
  5. Step 5: Solve for x
    x = 4,050,612,808.85/69,251.48
  6. Step 6: Final answer
    x = 58,491.35

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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.