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Finding the Fourth Proportional to 253,891.62, 350,370.72 and 140,714.46

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Solution

The fourth proportional to 253,891.62, 350,370.72 and 140,714.46 is: 194,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,891.62 : 350,370.72 = 140,714.46 : x
  2. Step 2: Convert to fraction form
    253,891.62/350,370.72 = 140,714.46/x
  3. Step 3: Cross multiply
    253,891.62x = 350,370.72 × 140,714.46
  4. Step 4: Simplify right side
    253,891.62x = 49,302,226,664.61
  5. Step 5: Solve for x
    x = 49,302,226,664.61/253,891.62
  6. Step 6: Final answer
    x = 194,186.11

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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.