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Finding the Fourth Proportional to 251,588.52, 347,198.68 and 136,874.32

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Solution

The fourth proportional to 251,588.52, 347,198.68 and 136,874.32 is: 188,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,588.52 : 347,198.68 = 136,874.32 : x
  2. Step 2: Convert to fraction form
    251,588.52/347,198.68 = 136,874.32/x
  3. Step 3: Cross multiply
    251,588.52x = 347,198.68 × 136,874.32
  4. Step 4: Simplify right side
    251,588.52x = 47,522,583,229.90
  5. Step 5: Solve for x
    x = 47,522,583,229.90/251,588.52
  6. Step 6: Final answer
    x = 188,890.11

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1.5x scale

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.