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Finding the Fourth Proportional to 178,909.88, 246,890.07 and 98,337.15

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Solution

The fourth proportional to 178,909.88, 246,890.07 and 98,337.15 is: 135,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,909.88 : 246,890.07 = 98,337.15 : x
  2. Step 2: Convert to fraction form
    178,909.88/246,890.07 = 98,337.15/x
  3. Step 3: Cross multiply
    178,909.88x = 246,890.07 × 98,337.15
  4. Step 4: Simplify right side
    178,909.88x = 24,278,465,847.10
  5. Step 5: Solve for x
    x = 24,278,465,847.10/178,909.88
  6. Step 6: Final answer
    x = 135,702.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.