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Finding the Fourth Proportional to 267,808.90, 401,817.91 and 117,943.87

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Solution

The fourth proportional to 267,808.90, 401,817.91 and 117,943.87 is: 176,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,808.90 : 401,817.91 = 117,943.87 : x
  2. Step 2: Convert to fraction form
    267,808.90/401,817.91 = 117,943.87/x
  3. Step 3: Cross multiply
    267,808.90x = 401,817.91 × 117,943.87
  4. Step 4: Simplify right side
    267,808.90x = 47,391,959,340.71
  5. Step 5: Solve for x
    x = 47,391,959,340.71/267,808.90
  6. Step 6: Final answer
    x = 176,961.85

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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.