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Finding the Fourth Proportional to 73,241.80, 109,862.70 and 60,557.20

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Solution

The fourth proportional to 73,241.80, 109,862.70 and 60,557.20 is: 90,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,241.80 : 109,862.70 = 60,557.20 : x
  2. Step 2: Convert to fraction form
    73,241.80/109,862.70 = 60,557.20/x
  3. Step 3: Cross multiply
    73,241.80x = 109,862.70 × 60,557.20
  4. Step 4: Simplify right side
    73,241.80x = 6,652,977,496.44
  5. Step 5: Solve for x
    x = 6,652,977,496.44/73,241.80
  6. Step 6: Final answer
    x = 90,835.80

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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.