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Finding the Fourth Proportional to 76,251.52, 105,170.88 and 52,382.08

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Solution

The fourth proportional to 76,251.52, 105,170.88 and 52,382.08 is: 72,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,251.52 : 105,170.88 = 52,382.08 : x
  2. Step 2: Convert to fraction form
    76,251.52/105,170.88 = 52,382.08/x
  3. Step 3: Cross multiply
    76,251.52x = 105,170.88 × 52,382.08
  4. Step 4: Simplify right side
    76,251.52x = 5,509,069,449.83
  5. Step 5: Solve for x
    x = 5,509,069,449.83/76,251.52
  6. Step 6: Final answer
    x = 72,248.65

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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.