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Finding the Fourth Proportional to 232,687.30, 349,087.04 and 80,862.31

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Solution

The fourth proportional to 232,687.30, 349,087.04 and 80,862.31 is: 121,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,687.30 : 349,087.04 = 80,862.31 : x
  2. Step 2: Convert to fraction form
    232,687.30/349,087.04 = 80,862.31/x
  3. Step 3: Cross multiply
    232,687.30x = 349,087.04 × 80,862.31
  4. Step 4: Simplify right side
    232,687.30x = 28,227,984,445.46
  5. Step 5: Solve for x
    x = 28,227,984,445.46/232,687.30
  6. Step 6: Final answer
    x = 121,312.96

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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.