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Finding the Fourth Proportional to 251,167.34, 376,806.48 and 82,680.86

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Solution

The fourth proportional to 251,167.34, 376,806.48 and 82,680.86 is: 124,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,167.34 : 376,806.48 = 82,680.86 : x
  2. Step 2: Convert to fraction form
    251,167.34/376,806.48 = 82,680.86/x
  3. Step 3: Cross multiply
    251,167.34x = 376,806.48 × 82,680.86
  4. Step 4: Simplify right side
    251,167.34x = 31,154,683,819.97
  5. Step 5: Solve for x
    x = 31,154,683,819.97/251,167.34
  6. Step 6: Final answer
    x = 124,039.55

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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.