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Finding the Fourth Proportional to 201,591.80, 278,196.92 and 110,954.32

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Solution

The fourth proportional to 201,591.80, 278,196.92 and 110,954.32 is: 153,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,591.80 : 278,196.92 = 110,954.32 : x
  2. Step 2: Convert to fraction form
    201,591.80/278,196.92 = 110,954.32/x
  3. Step 3: Cross multiply
    201,591.80x = 278,196.92 × 110,954.32
  4. Step 4: Simplify right side
    201,591.80x = 30,867,150,084.69
  5. Step 5: Solve for x
    x = 30,867,150,084.69/201,591.80
  6. Step 6: Final answer
    x = 153,117.09

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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.