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Finding the Fourth Proportional to 74,882.67, 112,354.56 and 48,242.58

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Solution

The fourth proportional to 74,882.67, 112,354.56 and 48,242.58 is: 72,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,882.67 : 112,354.56 = 48,242.58 : x
  2. Step 2: Convert to fraction form
    74,882.67/112,354.56 = 48,242.58/x
  3. Step 3: Cross multiply
    74,882.67x = 112,354.56 × 48,242.58
  4. Step 4: Simplify right side
    74,882.67x = 5,420,273,849.16
  5. Step 5: Solve for x
    x = 5,420,273,849.16/74,882.67
  6. Step 6: Final answer
    x = 72,383.55

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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.