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Finding the Fourth Proportional to 231,989.08, 347,926.92 and 74,184.88

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Solution

The fourth proportional to 231,989.08, 347,926.92 and 74,184.88 is: 111,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,989.08 : 347,926.92 = 74,184.88 : x
  2. Step 2: Convert to fraction form
    231,989.08/347,926.92 = 74,184.88/x
  3. Step 3: Cross multiply
    231,989.08x = 347,926.92 × 74,184.88
  4. Step 4: Simplify right side
    231,989.08x = 25,810,916,808.97
  5. Step 5: Solve for x
    x = 25,810,916,808.97/231,989.08
  6. Step 6: Final answer
    x = 111,259.19

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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.