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Finding the Fourth Proportional to 115,909.60, 173,874.84 and 41,021.68

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Solution

The fourth proportional to 115,909.60, 173,874.84 and 41,021.68 is: 61,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.60 : 173,874.84 = 41,021.68 : x
  2. Step 2: Convert to fraction form
    115,909.60/173,874.84 = 41,021.68/x
  3. Step 3: Cross multiply
    115,909.60x = 173,874.84 × 41,021.68
  4. Step 4: Simplify right side
    115,909.60x = 7,132,638,046.53
  5. Step 5: Solve for x
    x = 7,132,638,046.53/115,909.60
  6. Step 6: Final answer
    x = 61,536.21

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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.