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Finding the Fourth Proportional to 60,047.55, 90,073.17 and 20,604.11

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Solution

The fourth proportional to 60,047.55, 90,073.17 and 20,604.11 is: 30,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,047.55 : 90,073.17 = 20,604.11 : x
  2. Step 2: Convert to fraction form
    60,047.55/90,073.17 = 20,604.11/x
  3. Step 3: Cross multiply
    60,047.55x = 90,073.17 × 20,604.11
  4. Step 4: Simplify right side
    60,047.55x = 1,855,877,052.36
  5. Step 5: Solve for x
    x = 1,855,877,052.36/60,047.55
  6. Step 6: Final answer
    x = 30,906.79

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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.