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Finding the Fourth Proportional to 218,079.20, 327,118.80 and 93,663.20

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Solution

The fourth proportional to 218,079.20, 327,118.80 and 93,663.20 is: 140,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,079.20 : 327,118.80 = 93,663.20 : x
  2. Step 2: Convert to fraction form
    218,079.20/327,118.80 = 93,663.20/x
  3. Step 3: Cross multiply
    218,079.20x = 327,118.80 × 93,663.20
  4. Step 4: Simplify right side
    218,079.20x = 30,638,993,588.16
  5. Step 5: Solve for x
    x = 30,638,993,588.16/218,079.20
  6. Step 6: Final answer
    x = 140,494.80

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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.