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Finding the Fourth Proportional to 353,434.56, 487,734.33 and 192,285.92

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Solution

The fourth proportional to 353,434.56, 487,734.33 and 192,285.92 is: 265,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,434.56 : 487,734.33 = 192,285.92 : x
  2. Step 2: Convert to fraction form
    353,434.56/487,734.33 = 192,285.92/x
  3. Step 3: Cross multiply
    353,434.56x = 487,734.33 × 192,285.92
  4. Step 4: Simplify right side
    353,434.56x = 93,784,445,578.97
  5. Step 5: Solve for x
    x = 93,784,445,578.97/353,434.56
  6. Step 6: Final answer
    x = 265,351.66

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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.