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Finding the Fourth Proportional to 60,013.20, 89,890.20 and 49,645.20

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Solution

The fourth proportional to 60,013.20, 89,890.20 and 49,645.20 is: 74,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,013.20 : 89,890.20 = 49,645.20 : x
  2. Step 2: Convert to fraction form
    60,013.20/89,890.20 = 49,645.20/x
  3. Step 3: Cross multiply
    60,013.20x = 89,890.20 × 49,645.20
  4. Step 4: Simplify right side
    60,013.20x = 4,462,616,957.04
  5. Step 5: Solve for x
    x = 4,462,616,957.04/60,013.20
  6. Step 6: Final answer
    x = 74,360.59

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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.