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Finding the Fourth Proportional to 71,568.33, 107,296.04 and 45,217.53

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Solution

The fourth proportional to 71,568.33, 107,296.04 and 45,217.53 is: 67,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.33 : 107,296.04 = 45,217.53 : x
  2. Step 2: Convert to fraction form
    71,568.33/107,296.04 = 45,217.53/x
  3. Step 3: Cross multiply
    71,568.33x = 107,296.04 × 45,217.53
  4. Step 4: Simplify right side
    71,568.33x = 4,851,661,681.49
  5. Step 5: Solve for x
    x = 4,851,661,681.49/71,568.33
  6. Step 6: Final answer
    x = 67,790.62

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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.