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Finding the Fourth Proportional to 308,098.62, 425,154.96 and 170,271.72

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Solution

The fourth proportional to 308,098.62, 425,154.96 and 170,271.72 is: 234,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,098.62 : 425,154.96 = 170,271.72 : x
  2. Step 2: Convert to fraction form
    308,098.62/425,154.96 = 170,271.72/x
  3. Step 3: Cross multiply
    308,098.62x = 425,154.96 × 170,271.72
  4. Step 4: Simplify right side
    308,098.62x = 72,391,866,305.73
  5. Step 5: Solve for x
    x = 72,391,866,305.73/308,098.62
  6. Step 6: Final answer
    x = 234,963.29

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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.