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Finding the Fourth Proportional to 342,610.43, 472,796.66 and 189,645.34

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Solution

The fourth proportional to 342,610.43, 472,796.66 and 189,645.34 is: 261,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,610.43 : 472,796.66 = 189,645.34 : x
  2. Step 2: Convert to fraction form
    342,610.43/472,796.66 = 189,645.34/x
  3. Step 3: Cross multiply
    342,610.43x = 472,796.66 × 189,645.34
  4. Step 4: Simplify right side
    342,610.43x = 89,663,680,972.58
  5. Step 5: Solve for x
    x = 89,663,680,972.58/342,610.43
  6. Step 6: Final answer
    x = 261,707.39

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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.