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Finding the Fourth Proportional to 61,168.80, 91,753.20 and 40,241.10

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Solution

The fourth proportional to 61,168.80, 91,753.20 and 40,241.10 is: 60,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,168.80 : 91,753.20 = 40,241.10 : x
  2. Step 2: Convert to fraction form
    61,168.80/91,753.20 = 40,241.10/x
  3. Step 3: Cross multiply
    61,168.80x = 91,753.20 × 40,241.10
  4. Step 4: Simplify right side
    61,168.80x = 3,692,249,696.52
  5. Step 5: Solve for x
    x = 3,692,249,696.52/61,168.80
  6. Step 6: Final answer
    x = 60,361.65

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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.