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Finding the Fourth Proportional to 67,696.80, 101,545.20 and 17,773.60

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Solution

The fourth proportional to 67,696.80, 101,545.20 and 17,773.60 is: 26,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,696.80 : 101,545.20 = 17,773.60 : x
  2. Step 2: Convert to fraction form
    67,696.80/101,545.20 = 17,773.60/x
  3. Step 3: Cross multiply
    67,696.80x = 101,545.20 × 17,773.60
  4. Step 4: Simplify right side
    67,696.80x = 1,804,823,766.72
  5. Step 5: Solve for x
    x = 1,804,823,766.72/67,696.80
  6. Step 6: Final answer
    x = 26,660.40

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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.