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Finding the Fourth Proportional to 73,834.79, 110,808.68 and 38,325.20

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Solution

The fourth proportional to 73,834.79, 110,808.68 and 38,325.20 is: 57,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,834.79 : 110,808.68 = 38,325.20 : x
  2. Step 2: Convert to fraction form
    73,834.79/110,808.68 = 38,325.20/x
  3. Step 3: Cross multiply
    73,834.79x = 110,808.68 × 38,325.20
  4. Step 4: Simplify right side
    73,834.79x = 4,246,764,077.07
  5. Step 5: Solve for x
    x = 4,246,764,077.07/73,834.79
  6. Step 6: Final answer
    x = 57,517.12

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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.