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Finding the Fourth Proportional to 82,895.40, 124,310.28 and 36,115.56

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Solution

The fourth proportional to 82,895.40, 124,310.28 and 36,115.56 is: 54,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,895.40 : 124,310.28 = 36,115.56 : x
  2. Step 2: Convert to fraction form
    82,895.40/124,310.28 = 36,115.56/x
  3. Step 3: Cross multiply
    82,895.40x = 124,310.28 × 36,115.56
  4. Step 4: Simplify right side
    82,895.40x = 4,489,535,375.96
  5. Step 5: Solve for x
    x = 4,489,535,375.96/82,895.40
  6. Step 6: Final answer
    x = 54,159.04

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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.