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Finding the Fourth Proportional to 83,189.96, 124,714.22 and 36,407.88

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Solution

The fourth proportional to 83,189.96, 124,714.22 and 36,407.88 is: 54,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,189.96 : 124,714.22 = 36,407.88 : x
  2. Step 2: Convert to fraction form
    83,189.96/124,714.22 = 36,407.88/x
  3. Step 3: Cross multiply
    83,189.96x = 124,714.22 × 36,407.88
  4. Step 4: Simplify right side
    83,189.96x = 4,540,580,356.05
  5. Step 5: Solve for x
    x = 4,540,580,356.05/83,189.96
  6. Step 6: Final answer
    x = 54,580.87

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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.