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Finding the Fourth Proportional to 60,055.92, 90,058.20 and 20,617.02

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Solution

The fourth proportional to 60,055.92, 90,058.20 and 20,617.02 is: 30,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,055.92 : 90,058.20 = 20,617.02 : x
  2. Step 2: Convert to fraction form
    60,055.92/90,058.20 = 20,617.02/x
  3. Step 3: Cross multiply
    60,055.92x = 90,058.20 × 20,617.02
  4. Step 4: Simplify right side
    60,055.92x = 1,856,731,710.56
  5. Step 5: Solve for x
    x = 1,856,731,710.56/60,055.92
  6. Step 6: Final answer
    x = 30,916.71

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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.