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Finding the Fourth Proportional to 352,938.56, 487,058.20 and 191,793.74

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Solution

The fourth proportional to 352,938.56, 487,058.20 and 191,793.74 is: 264,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,938.56 : 487,058.20 = 191,793.74 : x
  2. Step 2: Convert to fraction form
    352,938.56/487,058.20 = 191,793.74/x
  3. Step 3: Cross multiply
    352,938.56x = 487,058.20 × 191,793.74
  4. Step 4: Simplify right side
    352,938.56x = 93,414,713,775.67
  5. Step 5: Solve for x
    x = 93,414,713,775.67/352,938.56
  6. Step 6: Final answer
    x = 264,676.98

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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.