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Finding the Fourth Proportional to 352,676.56, 486,693.52 and 191,531.66

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Solution

The fourth proportional to 352,676.56, 486,693.52 and 191,531.66 is: 264,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,676.56 : 486,693.52 = 191,531.66 : x
  2. Step 2: Convert to fraction form
    352,676.56/486,693.52 = 191,531.66/x
  3. Step 3: Cross multiply
    352,676.56x = 486,693.52 × 191,531.66
  4. Step 4: Simplify right side
    352,676.56x = 93,217,217,796.84
  5. Step 5: Solve for x
    x = 93,217,217,796.84/352,676.56
  6. Step 6: Final answer
    x = 264,313.62

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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.