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Finding the Fourth Proportional to 284,251.02, 392,263.86 and 156,923.88

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Solution

The fourth proportional to 284,251.02, 392,263.86 and 156,923.88 is: 216,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,251.02 : 392,263.86 = 156,923.88 : x
  2. Step 2: Convert to fraction form
    284,251.02/392,263.86 = 156,923.88/x
  3. Step 3: Cross multiply
    284,251.02x = 392,263.86 × 156,923.88
  4. Step 4: Simplify right side
    284,251.02x = 61,555,566,894.98
  5. Step 5: Solve for x
    x = 61,555,566,894.98/284,251.02
  6. Step 6: Final answer
    x = 216,553.55

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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.