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Finding the Fourth Proportional to 250,719.65, 376,115.25 and 82,253.15

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Solution

The fourth proportional to 250,719.65, 376,115.25 and 82,253.15 is: 123,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,719.65 : 376,115.25 = 82,253.15 : x
  2. Step 2: Convert to fraction form
    250,719.65/376,115.25 = 82,253.15/x
  3. Step 3: Cross multiply
    250,719.65x = 376,115.25 × 82,253.15
  4. Step 4: Simplify right side
    250,719.65x = 30,936,662,393.34
  5. Step 5: Solve for x
    x = 30,936,662,393.34/250,719.65
  6. Step 6: Final answer
    x = 123,391.45

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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.