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Finding the Fourth Proportional to 73,570.98, 110,355.68 and 48,722.20

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Solution

The fourth proportional to 73,570.98, 110,355.68 and 48,722.20 is: 73,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,570.98 : 110,355.68 = 48,722.20 : x
  2. Step 2: Convert to fraction form
    73,570.98/110,355.68 = 48,722.20/x
  3. Step 3: Cross multiply
    73,570.98x = 110,355.68 × 48,722.20
  4. Step 4: Simplify right side
    73,570.98x = 5,376,771,512.10
  5. Step 5: Solve for x
    x = 5,376,771,512.10/73,570.98
  6. Step 6: Final answer
    x = 73,082.78

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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.