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Finding the Fourth Proportional to 267,375.40, 401,048.34 and 89,864.08

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Solution

The fourth proportional to 267,375.40, 401,048.34 and 89,864.08 is: 134,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,375.40 : 401,048.34 = 89,864.08 : x
  2. Step 2: Convert to fraction form
    267,375.40/401,048.34 = 89,864.08/x
  3. Step 3: Cross multiply
    267,375.40x = 401,048.34 × 89,864.08
  4. Step 4: Simplify right side
    267,375.40x = 36,039,840,109.63
  5. Step 5: Solve for x
    x = 36,039,840,109.63/267,375.40
  6. Step 6: Final answer
    x = 134,791.16

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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.