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Finding the Fourth Proportional to 392,185.66, 588,472.92 and 155,523.10

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Solution

The fourth proportional to 392,185.66, 588,472.92 and 155,523.10 is: 233,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,185.66 : 588,472.92 = 155,523.10 : x
  2. Step 2: Convert to fraction form
    392,185.66/588,472.92 = 155,523.10/x
  3. Step 3: Cross multiply
    392,185.66x = 588,472.92 × 155,523.10
  4. Step 4: Simplify right side
    392,185.66x = 91,521,132,784.45
  5. Step 5: Solve for x
    x = 91,521,132,784.45/392,185.66
  6. Step 6: Final answer
    x = 233,361.75

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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.