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Finding the Fourth Proportional to 74,989.92, 112,447.80 and 25,052.88

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Solution

The fourth proportional to 74,989.92, 112,447.80 and 25,052.88 is: 37,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,989.92 : 112,447.80 = 25,052.88 : x
  2. Step 2: Convert to fraction form
    74,989.92/112,447.80 = 25,052.88/x
  3. Step 3: Cross multiply
    74,989.92x = 112,447.80 × 25,052.88
  4. Step 4: Simplify right side
    74,989.92x = 2,817,141,239.66
  5. Step 5: Solve for x
    x = 2,817,141,239.66/74,989.92
  6. Step 6: Final answer
    x = 37,566.93

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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.