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Finding the Fourth Proportional to 284,231.41, 392,229.06 and 156,904.27

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Solution

The fourth proportional to 284,231.41, 392,229.06 and 156,904.27 is: 216,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,231.41 : 392,229.06 = 156,904.27 : x
  2. Step 2: Convert to fraction form
    284,231.41/392,229.06 = 156,904.27/x
  3. Step 3: Cross multiply
    284,231.41x = 392,229.06 × 156,904.27
  4. Step 4: Simplify right side
    284,231.41x = 61,542,414,332.09
  5. Step 5: Solve for x
    x = 61,542,414,332.09/284,231.41
  6. Step 6: Final answer
    x = 216,522.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.