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Finding the Fourth Proportional to 115,648.29, 173,354.27 and 65,622.71

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Solution

The fourth proportional to 115,648.29, 173,354.27 and 65,622.71 is: 98,367.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,648.29 : 173,354.27 = 65,622.71 : x
  2. Step 2: Convert to fraction form
    115,648.29/173,354.27 = 65,622.71/x
  3. Step 3: Cross multiply
    115,648.29x = 173,354.27 × 65,622.71
  4. Step 4: Simplify right side
    115,648.29x = 11,375,977,092.74
  5. Step 5: Solve for x
    x = 11,375,977,092.74/115,648.29
  6. Step 6: Final answer
    x = 98,367.02

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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.