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Finding the Fourth Proportional to 271,168.30, 406,773.24 and 91,254.61

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Solution

The fourth proportional to 271,168.30, 406,773.24 and 91,254.61 is: 136,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,168.30 : 406,773.24 = 91,254.61 : x
  2. Step 2: Convert to fraction form
    271,168.30/406,773.24 = 91,254.61/x
  3. Step 3: Cross multiply
    271,168.30x = 406,773.24 × 91,254.61
  4. Step 4: Simplify right side
    271,168.30x = 37,119,933,374.64
  5. Step 5: Solve for x
    x = 37,119,933,374.64/271,168.30
  6. Step 6: Final answer
    x = 136,888.91

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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.