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Finding the Fourth Proportional to 352,751.15, 486,805.65 and 191,615.42

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Solution

The fourth proportional to 352,751.15, 486,805.65 and 191,615.42 is: 264,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,751.15 : 486,805.65 = 191,615.42 : x
  2. Step 2: Convert to fraction form
    352,751.15/486,805.65 = 191,615.42/x
  3. Step 3: Cross multiply
    352,751.15x = 486,805.65 × 191,615.42
  4. Step 4: Simplify right side
    352,751.15x = 93,279,469,581.58
  5. Step 5: Solve for x
    x = 93,279,469,581.58/352,751.15
  6. Step 6: Final answer
    x = 264,434.20

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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.