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Finding the Fourth Proportional to 179,344, 247,512 and 99,856

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Solution

The fourth proportional to 179,344, 247,512 and 99,856 is: 137,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,344 : 247,512 = 99,856 : x
  2. Step 2: Convert to fraction form
    179,344/247,512 = 99,856/x
  3. Step 3: Cross multiply
    179,344x = 247,512 × 99,856
  4. Step 4: Simplify right side
    179,344x = 24,715,558,272
  5. Step 5: Solve for x
    x = 24,715,558,272/179,344
  6. Step 6: Final answer
    x = 137,810.90

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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.