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Finding the Fourth Proportional to 60,974.72, 91,301.88 and 49,065.20

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Solution

The fourth proportional to 60,974.72, 91,301.88 and 49,065.20 is: 73,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,974.72 : 91,301.88 = 49,065.20 : x
  2. Step 2: Convert to fraction form
    60,974.72/91,301.88 = 49,065.20/x
  3. Step 3: Cross multiply
    60,974.72x = 91,301.88 × 49,065.20
  4. Step 4: Simplify right side
    60,974.72x = 4,479,745,002.58
  5. Step 5: Solve for x
    x = 4,479,745,002.58/60,974.72
  6. Step 6: Final answer
    x = 73,468.89

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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.