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Finding the Fourth Proportional to 218,432.60, 327,649.02 and 60,661.04

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Solution

The fourth proportional to 218,432.60, 327,649.02 and 60,661.04 is: 90,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,432.60 : 327,649.02 = 60,661.04 : x
  2. Step 2: Convert to fraction form
    218,432.60/327,649.02 = 60,661.04/x
  3. Step 3: Cross multiply
    218,432.60x = 327,649.02 × 60,661.04
  4. Step 4: Simplify right side
    218,432.60x = 19,875,530,308.18
  5. Step 5: Solve for x
    x = 19,875,530,308.18/218,432.60
  6. Step 6: Final answer
    x = 90,991.59

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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.