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Finding the Fourth Proportional to 201,480.88, 278,052.96 and 116,581.48

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Solution

The fourth proportional to 201,480.88, 278,052.96 and 116,581.48 is: 160,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,480.88 : 278,052.96 = 116,581.48 : x
  2. Step 2: Convert to fraction form
    201,480.88/278,052.96 = 116,581.48/x
  3. Step 3: Cross multiply
    201,480.88x = 278,052.96 × 116,581.48
  4. Step 4: Simplify right side
    201,480.88x = 32,415,825,595.18
  5. Step 5: Solve for x
    x = 32,415,825,595.18/201,480.88
  6. Step 6: Final answer
    x = 160,887.85

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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.