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Finding the Fourth Proportional to 83,241.60, 124,905.60 and 36,499.20

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Solution

The fourth proportional to 83,241.60, 124,905.60 and 36,499.20 is: 54,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,241.60 : 124,905.60 = 36,499.20 : x
  2. Step 2: Convert to fraction form
    83,241.60/124,905.60 = 36,499.20/x
  3. Step 3: Cross multiply
    83,241.60x = 124,905.60 × 36,499.20
  4. Step 4: Simplify right side
    83,241.60x = 4,558,954,475.52
  5. Step 5: Solve for x
    x = 4,558,954,475.52/83,241.60
  6. Step 6: Final answer
    x = 54,767.74

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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.