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Finding the Fourth Proportional to 74,855.29, 112,282.94 and 59,791.88

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Solution

The fourth proportional to 74,855.29, 112,282.94 and 59,791.88 is: 89,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855.29 : 112,282.94 = 59,791.88 : x
  2. Step 2: Convert to fraction form
    74,855.29/112,282.94 = 59,791.88/x
  3. Step 3: Cross multiply
    74,855.29x = 112,282.94 × 59,791.88
  4. Step 4: Simplify right side
    74,855.29x = 6,713,608,074.53
  5. Step 5: Solve for x
    x = 6,713,608,074.53/74,855.29
  6. Step 6: Final answer
    x = 89,687.82

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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.