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Finding the Fourth Proportional to 151,591.73, 209,078.48 and 97,889.94

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Solution

The fourth proportional to 151,591.73, 209,078.48 and 97,889.94 is: 135,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,591.73 : 209,078.48 = 97,889.94 : x
  2. Step 2: Convert to fraction form
    151,591.73/209,078.48 = 97,889.94/x
  3. Step 3: Cross multiply
    151,591.73x = 209,078.48 × 97,889.94
  4. Step 4: Simplify right side
    151,591.73x = 20,466,680,107.22
  5. Step 5: Solve for x
    x = 20,466,680,107.22/151,591.73
  6. Step 6: Final answer
    x = 135,011.86

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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.