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Finding the Fourth Proportional to 218,430.60, 327,646.02 and 60,659.04

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Solution

The fourth proportional to 218,430.60, 327,646.02 and 60,659.04 is: 90,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,430.60 : 327,646.02 = 60,659.04 : x
  2. Step 2: Convert to fraction form
    218,430.60/327,646.02 = 60,659.04/x
  3. Step 3: Cross multiply
    218,430.60x = 327,646.02 × 60,659.04
  4. Step 4: Simplify right side
    218,430.60x = 19,874,693,033.02
  5. Step 5: Solve for x
    x = 19,874,693,033.02/218,430.60
  6. Step 6: Final answer
    x = 90,988.59

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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.