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Finding the Fourth Proportional to 218,077.20, 327,115.80 and 93,661.20

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Solution

The fourth proportional to 218,077.20, 327,115.80 and 93,661.20 is: 140,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,077.20 : 327,115.80 = 93,661.20 : x
  2. Step 2: Convert to fraction form
    218,077.20/327,115.80 = 93,661.20/x
  3. Step 3: Cross multiply
    218,077.20x = 327,115.80 × 93,661.20
  4. Step 4: Simplify right side
    218,077.20x = 30,638,058,366.96
  5. Step 5: Solve for x
    x = 30,638,058,366.96/218,077.20
  6. Step 6: Final answer
    x = 140,491.80

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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.