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Finding the Fourth Proportional to 179,306.55, 268,979.31 and 67,040.55

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Solution

The fourth proportional to 179,306.55, 268,979.31 and 67,040.55 is: 100,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,306.55 : 268,979.31 = 67,040.55 : x
  2. Step 2: Convert to fraction form
    179,306.55/268,979.31 = 67,040.55/x
  3. Step 3: Cross multiply
    179,306.55x = 268,979.31 × 67,040.55
  4. Step 4: Simplify right side
    179,306.55x = 18,032,520,881.02
  5. Step 5: Solve for x
    x = 18,032,520,881.02/179,306.55
  6. Step 6: Final answer
    x = 100,568.11

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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.