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Finding the Fourth Proportional to 267,769.32, 401,655.36 and 90,277.87

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Solution

The fourth proportional to 267,769.32, 401,655.36 and 90,277.87 is: 135,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,769.32 : 401,655.36 = 90,277.87 : x
  2. Step 2: Convert to fraction form
    267,769.32/401,655.36 = 90,277.87/x
  3. Step 3: Cross multiply
    267,769.32x = 401,655.36 × 90,277.87
  4. Step 4: Simplify right side
    267,769.32x = 36,260,588,824.92
  5. Step 5: Solve for x
    x = 36,260,588,824.92/267,769.32
  6. Step 6: Final answer
    x = 135,417.26

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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.