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Finding the Fourth Proportional to 60,387.92, 90,030.60 and 58,853.32

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Solution

The fourth proportional to 60,387.92, 90,030.60 and 58,853.32 is: 87,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,387.92 : 90,030.60 = 58,853.32 : x
  2. Step 2: Convert to fraction form
    60,387.92/90,030.60 = 58,853.32/x
  3. Step 3: Cross multiply
    60,387.92x = 90,030.60 × 58,853.32
  4. Step 4: Simplify right side
    60,387.92x = 5,298,599,711.59
  5. Step 5: Solve for x
    x = 5,298,599,711.59/60,387.92
  6. Step 6: Final answer
    x = 87,742.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.