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Finding the Fourth Proportional to 250,962.40, 376,363.68 and 82,443.61

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Solution

The fourth proportional to 250,962.40, 376,363.68 and 82,443.61 is: 123,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,962.40 : 376,363.68 = 82,443.61 : x
  2. Step 2: Convert to fraction form
    250,962.40/376,363.68 = 82,443.61/x
  3. Step 3: Cross multiply
    250,962.40x = 376,363.68 × 82,443.61
  4. Step 4: Simplify right side
    250,962.40x = 31,028,780,452.08
  5. Step 5: Solve for x
    x = 31,028,780,452.08/250,962.40
  6. Step 6: Final answer
    x = 123,639.16

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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.