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Finding the Fourth Proportional to 279,963.65, 386,209.41 and 177,822.52

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Solution

The fourth proportional to 279,963.65, 386,209.41 and 177,822.52 is: 245,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,963.65 : 386,209.41 = 177,822.52 : x
  2. Step 2: Convert to fraction form
    279,963.65/386,209.41 = 177,822.52/x
  3. Step 3: Cross multiply
    279,963.65x = 386,209.41 × 177,822.52
  4. Step 4: Simplify right side
    279,963.65x = 68,676,730,533.91
  5. Step 5: Solve for x
    x = 68,676,730,533.91/279,963.65
  6. Step 6: Final answer
    x = 245,305.88

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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.