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Finding the Fourth Proportional to 92,446.40, 138,672.80 and 29,267.20

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Solution

The fourth proportional to 92,446.40, 138,672.80 and 29,267.20 is: 43,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,446.40 : 138,672.80 = 29,267.20 : x
  2. Step 2: Convert to fraction form
    92,446.40/138,672.80 = 29,267.20/x
  3. Step 3: Cross multiply
    92,446.40x = 138,672.80 × 29,267.20
  4. Step 4: Simplify right side
    92,446.40x = 4,058,564,572.16
  5. Step 5: Solve for x
    x = 4,058,564,572.16/92,446.40
  6. Step 6: Final answer
    x = 43,901.81

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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.