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Finding the Fourth Proportional to 71,100.55, 106,651.13 and 17,792.39

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Solution

The fourth proportional to 71,100.55, 106,651.13 and 17,792.39 is: 26,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,100.55 : 106,651.13 = 17,792.39 : x
  2. Step 2: Convert to fraction form
    71,100.55/106,651.13 = 17,792.39/x
  3. Step 3: Cross multiply
    71,100.55x = 106,651.13 × 17,792.39
  4. Step 4: Simplify right side
    71,100.55x = 1,897,578,676.57
  5. Step 5: Solve for x
    x = 1,897,578,676.57/71,100.55
  6. Step 6: Final answer
    x = 26,688.66

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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.