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Finding the Fourth Proportional to 250,115.18, 375,212.01 and 81,596.62

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Solution

The fourth proportional to 250,115.18, 375,212.01 and 81,596.62 is: 122,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,115.18 : 375,212.01 = 81,596.62 : x
  2. Step 2: Convert to fraction form
    250,115.18/375,212.01 = 81,596.62/x
  3. Step 3: Cross multiply
    250,115.18x = 375,212.01 × 81,596.62
  4. Step 4: Simplify right side
    250,115.18x = 30,616,031,799.41
  5. Step 5: Solve for x
    x = 30,616,031,799.41/250,115.18
  6. Step 6: Final answer
    x = 122,407.73

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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.