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Finding the Fourth Proportional to 353,010.48, 487,159.39 and 191,865.48

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Solution

The fourth proportional to 353,010.48, 487,159.39 and 191,865.48 is: 264,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,010.48 : 487,159.39 = 191,865.48 : x
  2. Step 2: Convert to fraction form
    353,010.48/487,159.39 = 191,865.48/x
  3. Step 3: Cross multiply
    353,010.48x = 487,159.39 × 191,865.48
  4. Step 4: Simplify right side
    353,010.48x = 93,469,070,198.86
  5. Step 5: Solve for x
    x = 93,469,070,198.86/353,010.48
  6. Step 6: Final answer
    x = 264,777.04

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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.