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Finding the Fourth Proportional to 267,656.31, 401,357.34 and 155,370.96

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Solution

The fourth proportional to 267,656.31, 401,357.34 and 155,370.96 is: 232,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,656.31 : 401,357.34 = 155,370.96 : x
  2. Step 2: Convert to fraction form
    267,656.31/401,357.34 = 155,370.96/x
  3. Step 3: Cross multiply
    267,656.31x = 401,357.34 × 155,370.96
  4. Step 4: Simplify right side
    267,656.31x = 62,359,275,218.85
  5. Step 5: Solve for x
    x = 62,359,275,218.85/267,656.31
  6. Step 6: Final answer
    x = 232,982.65

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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.