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Finding the Fourth Proportional to 67,267.16, 100,877.10 and 19,869.60

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Solution

The fourth proportional to 67,267.16, 100,877.10 and 19,869.60 is: 29,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,267.16 : 100,877.10 = 19,869.60 : x
  2. Step 2: Convert to fraction form
    67,267.16/100,877.10 = 19,869.60/x
  3. Step 3: Cross multiply
    67,267.16x = 100,877.10 × 19,869.60
  4. Step 4: Simplify right side
    67,267.16x = 2,004,387,626.16
  5. Step 5: Solve for x
    x = 2,004,387,626.16/67,267.16
  6. Step 6: Final answer
    x = 29,797.42

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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.