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Finding the Fourth Proportional to 59,947.20, 89,908.20 and 30,337.20

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Solution

The fourth proportional to 59,947.20, 89,908.20 and 30,337.20 is: 45,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,947.20 : 89,908.20 = 30,337.20 : x
  2. Step 2: Convert to fraction form
    59,947.20/89,908.20 = 30,337.20/x
  3. Step 3: Cross multiply
    59,947.20x = 89,908.20 × 30,337.20
  4. Step 4: Simplify right side
    59,947.20x = 2,727,563,045.04
  5. Step 5: Solve for x
    x = 2,727,563,045.04/59,947.20
  6. Step 6: Final answer
    x = 45,499.42

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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.