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Finding the Fourth Proportional to 70,052.94, 96,672.06 and 38,221.20

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Solution

The fourth proportional to 70,052.94, 96,672.06 and 38,221.20 is: 52,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,052.94 : 96,672.06 = 38,221.20 : x
  2. Step 2: Convert to fraction form
    70,052.94/96,672.06 = 38,221.20/x
  3. Step 3: Cross multiply
    70,052.94x = 96,672.06 × 38,221.20
  4. Step 4: Simplify right side
    70,052.94x = 3,694,922,139.67
  5. Step 5: Solve for x
    x = 3,694,922,139.67/70,052.94
  6. Step 6: Final answer
    x = 52,744.71

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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.