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Finding the Fourth Proportional to 194,769.40, 292,067.70 and 89,620.60

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Solution

The fourth proportional to 194,769.40, 292,067.70 and 89,620.60 is: 134,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,769.40 : 292,067.70 = 89,620.60 : x
  2. Step 2: Convert to fraction form
    194,769.40/292,067.70 = 89,620.60/x
  3. Step 3: Cross multiply
    194,769.40x = 292,067.70 × 89,620.60
  4. Step 4: Simplify right side
    194,769.40x = 26,175,282,514.62
  5. Step 5: Solve for x
    x = 26,175,282,514.62/194,769.40
  6. Step 6: Final answer
    x = 134,391.14

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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.