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Finding the Fourth Proportional to 115,672.90, 173,898.15 and 98,565.70

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Solution

The fourth proportional to 115,672.90, 173,898.15 and 98,565.70 is: 148,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,672.90 : 173,898.15 = 98,565.70 : x
  2. Step 2: Convert to fraction form
    115,672.90/173,898.15 = 98,565.70/x
  3. Step 3: Cross multiply
    115,672.90x = 173,898.15 × 98,565.70
  4. Step 4: Simplify right side
    115,672.90x = 17,140,392,883.46
  5. Step 5: Solve for x
    x = 17,140,392,883.46/115,672.90
  6. Step 6: Final answer
    x = 148,179.85

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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.