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Finding the Fourth Proportional to 267,687.96, 401,513.16 and 125,564.40

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Solution

The fourth proportional to 267,687.96, 401,513.16 and 125,564.40 is: 188,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,687.96 : 401,513.16 = 125,564.40 : x
  2. Step 2: Convert to fraction form
    267,687.96/401,513.16 = 125,564.40/x
  3. Step 3: Cross multiply
    267,687.96x = 401,513.16 × 125,564.40
  4. Step 4: Simplify right side
    267,687.96x = 50,415,759,027.50
  5. Step 5: Solve for x
    x = 50,415,759,027.50/267,687.96
  6. Step 6: Final answer
    x = 188,337.79

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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.