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Finding the Fourth Proportional to 266,040.80, 398,862.80 and 160,837.60

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Solution

The fourth proportional to 266,040.80, 398,862.80 and 160,837.60 is: 241,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,040.80 : 398,862.80 = 160,837.60 : x
  2. Step 2: Convert to fraction form
    266,040.80/398,862.80 = 160,837.60/x
  3. Step 3: Cross multiply
    266,040.80x = 398,862.80 × 160,837.60
  4. Step 4: Simplify right side
    266,040.80x = 64,152,135,481.28
  5. Step 5: Solve for x
    x = 64,152,135,481.28/266,040.80
  6. Step 6: Final answer
    x = 241,136.46

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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.