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Finding the Fourth Proportional to 72,966.45, 109,452.99 and 22,361.84

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Solution

The fourth proportional to 72,966.45, 109,452.99 and 22,361.84 is: 33,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,966.45 : 109,452.99 = 22,361.84 : x
  2. Step 2: Convert to fraction form
    72,966.45/109,452.99 = 22,361.84/x
  3. Step 3: Cross multiply
    72,966.45x = 109,452.99 × 22,361.84
  4. Step 4: Simplify right side
    72,966.45x = 2,447,570,249.90
  5. Step 5: Solve for x
    x = 2,447,570,249.90/72,966.45
  6. Step 6: Final answer
    x = 33,543.78

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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.