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Finding the Fourth Proportional to 201,359.71, 277,876.61 and 110,717.20

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Solution

The fourth proportional to 201,359.71, 277,876.61 and 110,717.20 is: 152,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,359.71 : 277,876.61 = 110,717.20 : x
  2. Step 2: Convert to fraction form
    201,359.71/277,876.61 = 110,717.20/x
  3. Step 3: Cross multiply
    201,359.71x = 277,876.61 × 110,717.20
  4. Step 4: Simplify right side
    201,359.71x = 30,765,720,204.69
  5. Step 5: Solve for x
    x = 30,765,720,204.69/201,359.71
  6. Step 6: Final answer
    x = 152,789.85

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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.