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Finding the Fourth Proportional to 267,382.38, 401,069.30 and 64,980.12

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Solution

The fourth proportional to 267,382.38, 401,069.30 and 64,980.12 is: 97,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,382.38 : 401,069.30 = 64,980.12 : x
  2. Step 2: Convert to fraction form
    267,382.38/401,069.30 = 64,980.12/x
  3. Step 3: Cross multiply
    267,382.38x = 401,069.30 × 64,980.12
  4. Step 4: Simplify right side
    267,382.38x = 26,061,530,917.42
  5. Step 5: Solve for x
    x = 26,061,530,917.42/267,382.38
  6. Step 6: Final answer
    x = 97,469.14

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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.