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Finding the Fourth Proportional to 70,159.96, 96,821.09 and 38,329.39

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Solution

The fourth proportional to 70,159.96, 96,821.09 and 38,329.39 is: 52,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.96 : 96,821.09 = 38,329.39 : x
  2. Step 2: Convert to fraction form
    70,159.96/96,821.09 = 38,329.39/x
  3. Step 3: Cross multiply
    70,159.96x = 96,821.09 × 38,329.39
  4. Step 4: Simplify right side
    70,159.96x = 3,711,093,318.84
  5. Step 5: Solve for x
    x = 3,711,093,318.84/70,159.96
  6. Step 6: Final answer
    x = 52,894.75

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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.