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Finding the Fourth Proportional to 438,759.32, 658,138.98 and 106,335.32

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Solution

The fourth proportional to 438,759.32, 658,138.98 and 106,335.32 is: 159,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,759.32 : 658,138.98 = 106,335.32 : x
  2. Step 2: Convert to fraction form
    438,759.32/658,138.98 = 106,335.32/x
  3. Step 3: Cross multiply
    438,759.32x = 658,138.98 × 106,335.32
  4. Step 4: Simplify right side
    438,759.32x = 69,983,419,042.77
  5. Step 5: Solve for x
    x = 69,983,419,042.77/438,759.32
  6. Step 6: Final answer
    x = 159,502.98

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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.