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Finding the Fourth Proportional to 71,628.40, 107,410.20 and 32,165.20

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Solution

The fourth proportional to 71,628.40, 107,410.20 and 32,165.20 is: 48,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,628.40 : 107,410.20 = 32,165.20 : x
  2. Step 2: Convert to fraction form
    71,628.40/107,410.20 = 32,165.20/x
  3. Step 3: Cross multiply
    71,628.40x = 107,410.20 × 32,165.20
  4. Step 4: Simplify right side
    71,628.40x = 3,454,870,565.04
  5. Step 5: Solve for x
    x = 3,454,870,565.04/71,628.40
  6. Step 6: Final answer
    x = 48,233.25

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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.