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Finding the Fourth Proportional to 104,780.39, 157,169.05 and 25,894.62

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Solution

The fourth proportional to 104,780.39, 157,169.05 and 25,894.62 is: 38,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,780.39 : 157,169.05 = 25,894.62 : x
  2. Step 2: Convert to fraction form
    104,780.39/157,169.05 = 25,894.62/x
  3. Step 3: Cross multiply
    104,780.39x = 157,169.05 × 25,894.62
  4. Step 4: Simplify right side
    104,780.39x = 4,069,832,760.77
  5. Step 5: Solve for x
    x = 4,069,832,760.77/104,780.39
  6. Step 6: Final answer
    x = 38,841.55

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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.