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Finding the Fourth Proportional to 158,789.91, 219,122.03 and 94,261.91

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Solution

The fourth proportional to 158,789.91, 219,122.03 and 94,261.91 is: 130,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,789.91 : 219,122.03 = 94,261.91 : x
  2. Step 2: Convert to fraction form
    158,789.91/219,122.03 = 94,261.91/x
  3. Step 3: Cross multiply
    158,789.91x = 219,122.03 × 94,261.91
  4. Step 4: Simplify right side
    158,789.91x = 20,654,859,503.96
  5. Step 5: Solve for x
    x = 20,654,859,503.96/158,789.91
  6. Step 6: Final answer
    x = 130,076.65

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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.