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Finding the Fourth Proportional to 266,806.88, 400,180.68 and 67,127.16

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Solution

The fourth proportional to 266,806.88, 400,180.68 and 67,127.16 is: 100,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,806.88 : 400,180.68 = 67,127.16 : x
  2. Step 2: Convert to fraction form
    266,806.88/400,180.68 = 67,127.16/x
  3. Step 3: Cross multiply
    266,806.88x = 400,180.68 × 67,127.16
  4. Step 4: Simplify right side
    266,806.88x = 26,862,992,535.27
  5. Step 5: Solve for x
    x = 26,862,992,535.27/266,806.88
  6. Step 6: Final answer
    x = 100,683.28

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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.