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Finding the Fourth Proportional to 103,432.64, 154,842.78 and 63,862.52

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Solution

The fourth proportional to 103,432.64, 154,842.78 and 63,862.52 is: 95,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.64 : 154,842.78 = 63,862.52 : x
  2. Step 2: Convert to fraction form
    103,432.64/154,842.78 = 63,862.52/x
  3. Step 3: Cross multiply
    103,432.64x = 154,842.78 × 63,862.52
  4. Step 4: Simplify right side
    103,432.64x = 9,888,650,134.61
  5. Step 5: Solve for x
    x = 9,888,650,134.61/103,432.64
  6. Step 6: Final answer
    x = 95,604.73

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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.