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Finding the Fourth Proportional to 73,168.76, 109,741.90 and 23,242.40

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Solution

The fourth proportional to 73,168.76, 109,741.90 and 23,242.40 is: 34,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,168.76 : 109,741.90 = 23,242.40 : x
  2. Step 2: Convert to fraction form
    73,168.76/109,741.90 = 23,242.40/x
  3. Step 3: Cross multiply
    73,168.76x = 109,741.90 × 23,242.40
  4. Step 4: Simplify right side
    73,168.76x = 2,550,665,136.56
  5. Step 5: Solve for x
    x = 2,550,665,136.56/73,168.76
  6. Step 6: Final answer
    x = 34,860.03

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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.