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Finding the Fourth Proportional to 70,161.88, 96,822.18 and 38,329.96

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Solution

The fourth proportional to 70,161.88, 96,822.18 and 38,329.96 is: 52,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.88 : 96,822.18 = 38,329.96 : x
  2. Step 2: Convert to fraction form
    70,161.88/96,822.18 = 38,329.96/x
  3. Step 3: Cross multiply
    70,161.88x = 96,822.18 × 38,329.96
  4. Step 4: Simplify right side
    70,161.88x = 3,711,190,286.51
  5. Step 5: Solve for x
    x = 3,711,190,286.51/70,161.88
  6. Step 6: Final answer
    x = 52,894.68

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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.