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Finding the Fourth Proportional to 159,234.41, 219,749.52 and 91,264.49

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Solution

The fourth proportional to 159,234.41, 219,749.52 and 91,264.49 is: 125,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,234.41 : 219,749.52 = 91,264.49 : x
  2. Step 2: Convert to fraction form
    159,234.41/219,749.52 = 91,264.49/x
  3. Step 3: Cross multiply
    159,234.41x = 219,749.52 × 91,264.49
  4. Step 4: Simplify right side
    159,234.41x = 20,055,326,771.80
  5. Step 5: Solve for x
    x = 20,055,326,771.80/159,234.41
  6. Step 6: Final answer
    x = 125,948.45

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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.