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Finding the Fourth Proportional to 257,776.67, 386,540.01 and 151,195.44

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Solution

The fourth proportional to 257,776.67, 386,540.01 and 151,195.44 is: 226,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,776.67 : 386,540.01 = 151,195.44 : x
  2. Step 2: Convert to fraction form
    257,776.67/386,540.01 = 151,195.44/x
  3. Step 3: Cross multiply
    257,776.67x = 386,540.01 × 151,195.44
  4. Step 4: Simplify right side
    257,776.67x = 58,443,088,339.08
  5. Step 5: Solve for x
    x = 58,443,088,339.08/257,776.67
  6. Step 6: Final answer
    x = 226,719.85

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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.