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Finding the Fourth Proportional to 89,049.52, 122,879.96 and 53,232.40

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Solution

The fourth proportional to 89,049.52, 122,879.96 and 53,232.40 is: 73,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,049.52 : 122,879.96 = 53,232.40 : x
  2. Step 2: Convert to fraction form
    89,049.52/122,879.96 = 53,232.40/x
  3. Step 3: Cross multiply
    89,049.52x = 122,879.96 × 53,232.40
  4. Step 4: Simplify right side
    89,049.52x = 6,541,195,182.70
  5. Step 5: Solve for x
    x = 6,541,195,182.70/89,049.52
  6. Step 6: Final answer
    x = 73,455.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.