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Finding the Fourth Proportional to 193,452.38, 290,003.40 and 68,764.22

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Solution

The fourth proportional to 193,452.38, 290,003.40 and 68,764.22 is: 103,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,452.38 : 290,003.40 = 68,764.22 : x
  2. Step 2: Convert to fraction form
    193,452.38/290,003.40 = 68,764.22/x
  3. Step 3: Cross multiply
    193,452.38x = 290,003.40 × 68,764.22
  4. Step 4: Simplify right side
    193,452.38x = 19,941,857,598.35
  5. Step 5: Solve for x
    x = 19,941,857,598.35/193,452.38
  6. Step 6: Final answer
    x = 103,084.06

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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.