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Finding the Fourth Proportional to 232,712.88, 349,082.28 and 66,505.20

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Solution

The fourth proportional to 232,712.88, 349,082.28 and 66,505.20 is: 99,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,712.88 : 349,082.28 = 66,505.20 : x
  2. Step 2: Convert to fraction form
    232,712.88/349,082.28 = 66,505.20/x
  3. Step 3: Cross multiply
    232,712.88x = 349,082.28 × 66,505.20
  4. Step 4: Simplify right side
    232,712.88x = 23,215,786,847.86
  5. Step 5: Solve for x
    x = 23,215,786,847.86/232,712.88
  6. Step 6: Final answer
    x = 99,761.50

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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.