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Finding the Fourth Proportional to 400,851.06, 601,331.80 and 134,687.62

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Solution

The fourth proportional to 400,851.06, 601,331.80 and 134,687.62 is: 202,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,851.06 : 601,331.80 = 134,687.62 : x
  2. Step 2: Convert to fraction form
    400,851.06/601,331.80 = 134,687.62/x
  3. Step 3: Cross multiply
    400,851.06x = 601,331.80 × 134,687.62
  4. Step 4: Simplify right side
    400,851.06x = 80,991,948,972.32
  5. Step 5: Solve for x
    x = 80,991,948,972.32/400,851.06
  6. Step 6: Final answer
    x = 202,049.98

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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.