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Finding the Fourth Proportional to 48,661.20, 73,020.60 and 32,069.20

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Solution

The fourth proportional to 48,661.20, 73,020.60 and 32,069.20 is: 48,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,661.20 : 73,020.60 = 32,069.20 : x
  2. Step 2: Convert to fraction form
    48,661.20/73,020.60 = 32,069.20/x
  3. Step 3: Cross multiply
    48,661.20x = 73,020.60 × 32,069.20
  4. Step 4: Simplify right side
    48,661.20x = 2,341,712,225.52
  5. Step 5: Solve for x
    x = 2,341,712,225.52/48,661.20
  6. Step 6: Final answer
    x = 48,122.78

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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.