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Finding the Fourth Proportional to 400,851.04, 601,331.78 and 134,687.60

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Solution

The fourth proportional to 400,851.04, 601,331.78 and 134,687.60 is: 202,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,851.04 : 601,331.78 = 134,687.60 : x
  2. Step 2: Convert to fraction form
    400,851.04/601,331.78 = 134,687.60/x
  3. Step 3: Cross multiply
    400,851.04x = 601,331.78 × 134,687.60
  4. Step 4: Simplify right side
    400,851.04x = 80,991,934,251.93
  5. Step 5: Solve for x
    x = 80,991,934,251.93/400,851.04
  6. Step 6: Final answer
    x = 202,049.95

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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.