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Finding the Fourth Proportional to 273,397.60, 409,174.80 and 251,279.20

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Solution

The fourth proportional to 273,397.60, 409,174.80 and 251,279.20 is: 376,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,397.60 : 409,174.80 = 251,279.20 : x
  2. Step 2: Convert to fraction form
    273,397.60/409,174.80 = 251,279.20/x
  3. Step 3: Cross multiply
    273,397.60x = 409,174.80 × 251,279.20
  4. Step 4: Simplify right side
    273,397.60x = 102,817,116,404.16
  5. Step 5: Solve for x
    x = 102,817,116,404.16/273,397.60
  6. Step 6: Final answer
    x = 376,071.76

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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.