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Finding the Fourth Proportional to 251,882.92, 347,602.98 and 137,164.96

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Solution

The fourth proportional to 251,882.92, 347,602.98 and 137,164.96 is: 189,290.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,882.92 : 347,602.98 = 137,164.96 : x
  2. Step 2: Convert to fraction form
    251,882.92/347,602.98 = 137,164.96/x
  3. Step 3: Cross multiply
    251,882.92x = 347,602.98 × 137,164.96
  4. Step 4: Simplify right side
    251,882.92x = 47,678,948,847.58
  5. Step 5: Solve for x
    x = 47,678,948,847.58/251,882.92
  6. Step 6: Final answer
    x = 189,290.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.