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Finding the Fourth Proportional to 92,367.47, 138,550.39 and 29,187.61

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Solution

The fourth proportional to 92,367.47, 138,550.39 and 29,187.61 is: 43,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,367.47 : 138,550.39 = 29,187.61 : x
  2. Step 2: Convert to fraction form
    92,367.47/138,550.39 = 29,187.61/x
  3. Step 3: Cross multiply
    92,367.47x = 138,550.39 × 29,187.61
  4. Step 4: Simplify right side
    92,367.47x = 4,043,954,748.67
  5. Step 5: Solve for x
    x = 4,043,954,748.67/92,367.47
  6. Step 6: Final answer
    x = 43,781.16

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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.