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Finding the Fourth Proportional to 74,983.92, 112,438.80 and 25,046.88

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Solution

The fourth proportional to 74,983.92, 112,438.80 and 25,046.88 is: 37,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,983.92 : 112,438.80 = 25,046.88 : x
  2. Step 2: Convert to fraction form
    74,983.92/112,438.80 = 25,046.88/x
  3. Step 3: Cross multiply
    74,983.92x = 112,438.80 × 25,046.88
  4. Step 4: Simplify right side
    74,983.92x = 2,816,241,130.94
  5. Step 5: Solve for x
    x = 2,816,241,130.94/74,983.92
  6. Step 6: Final answer
    x = 37,557.93

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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.