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Finding the Fourth Proportional to 70,894.80, 97,839.12 and 39,063.66

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Solution

The fourth proportional to 70,894.80, 97,839.12 and 39,063.66 is: 53,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.80 : 97,839.12 = 39,063.66 : x
  2. Step 2: Convert to fraction form
    70,894.80/97,839.12 = 39,063.66/x
  3. Step 3: Cross multiply
    70,894.80x = 97,839.12 × 39,063.66
  4. Step 4: Simplify right side
    70,894.80x = 3,821,954,118.38
  5. Step 5: Solve for x
    x = 3,821,954,118.38/70,894.80
  6. Step 6: Final answer
    x = 53,910.22

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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.