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Finding the Fourth Proportional to 70,399.20, 97,151.22 and 38,568

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Solution

The fourth proportional to 70,399.20, 97,151.22 and 38,568 is: 53,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,399.20 : 97,151.22 = 38,568 : x
  2. Step 2: Convert to fraction form
    70,399.20/97,151.22 = 38,568/x
  3. Step 3: Cross multiply
    70,399.20x = 97,151.22 × 38,568
  4. Step 4: Simplify right side
    70,399.20x = 3,746,928,252.96
  5. Step 5: Solve for x
    x = 3,746,928,252.96/70,399.20
  6. Step 6: Final answer
    x = 53,224.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.