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Finding the Fourth Proportional to 267,386.82, 401,081.13 and 67,707.09

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Solution

The fourth proportional to 267,386.82, 401,081.13 and 67,707.09 is: 101,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,386.82 : 401,081.13 = 67,707.09 : x
  2. Step 2: Convert to fraction form
    267,386.82/401,081.13 = 67,707.09/x
  3. Step 3: Cross multiply
    267,386.82x = 401,081.13 × 67,707.09
  4. Step 4: Simplify right side
    267,386.82x = 27,156,036,166.21
  5. Step 5: Solve for x
    x = 27,156,036,166.21/267,386.82
  6. Step 6: Final answer
    x = 101,560.86

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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.