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Finding the Fourth Proportional to 218,448.28, 327,716.16 and 68,726.24

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Solution

The fourth proportional to 218,448.28, 327,716.16 and 68,726.24 is: 103,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,448.28 : 327,716.16 = 68,726.24 : x
  2. Step 2: Convert to fraction form
    218,448.28/327,716.16 = 68,726.24/x
  3. Step 3: Cross multiply
    218,448.28x = 327,716.16 × 68,726.24
  4. Step 4: Simplify right side
    218,448.28x = 22,522,699,464.04
  5. Step 5: Solve for x
    x = 22,522,699,464.04/218,448.28
  6. Step 6: Final answer
    x = 103,103.12

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1.5x scale

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.