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Finding the Fourth Proportional to 267,445.80, 401,168.70 and 228,079.80

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Solution

The fourth proportional to 267,445.80, 401,168.70 and 228,079.80 is: 342,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,445.80 : 401,168.70 = 228,079.80 : x
  2. Step 2: Convert to fraction form
    267,445.80/401,168.70 = 228,079.80/x
  3. Step 3: Cross multiply
    267,445.80x = 401,168.70 × 228,079.80
  4. Step 4: Simplify right side
    267,445.80x = 91,498,476,862.26
  5. Step 5: Solve for x
    x = 91,498,476,862.26/267,445.80
  6. Step 6: Final answer
    x = 342,119.70

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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.