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Finding the Fourth Proportional to 250,034.42, 375,165.49 and 105,979.73

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Solution

The fourth proportional to 250,034.42, 375,165.49 and 105,979.73 is: 159,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,034.42 : 375,165.49 = 105,979.73 : x
  2. Step 2: Convert to fraction form
    250,034.42/375,165.49 = 105,979.73/x
  3. Step 3: Cross multiply
    250,034.42x = 375,165.49 × 105,979.73
  4. Step 4: Simplify right side
    250,034.42x = 39,759,935,194.74
  5. Step 5: Solve for x
    x = 39,759,935,194.74/250,034.42
  6. Step 6: Final answer
    x = 159,017.85

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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.