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Finding the Fourth Proportional to 388,549.28, 582,856.73 and 108,066.53

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Solution

The fourth proportional to 388,549.28, 582,856.73 and 108,066.53 is: 162,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,549.28 : 582,856.73 = 108,066.53 : x
  2. Step 2: Convert to fraction form
    388,549.28/582,856.73 = 108,066.53/x
  3. Step 3: Cross multiply
    388,549.28x = 582,856.73 × 108,066.53
  4. Step 4: Simplify right side
    388,549.28x = 62,987,304,298.25
  5. Step 5: Solve for x
    x = 62,987,304,298.25/388,549.28
  6. Step 6: Final answer
    x = 162,108.92

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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.