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Finding the Fourth Proportional to 159,765.06, 220,476.50 and 88,147.19

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Solution

The fourth proportional to 159,765.06, 220,476.50 and 88,147.19 is: 121,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,765.06 : 220,476.50 = 88,147.19 : x
  2. Step 2: Convert to fraction form
    159,765.06/220,476.50 = 88,147.19/x
  3. Step 3: Cross multiply
    159,765.06x = 220,476.50 × 88,147.19
  4. Step 4: Simplify right side
    159,765.06x = 19,434,383,936.04
  5. Step 5: Solve for x
    x = 19,434,383,936.04/159,765.06
  6. Step 6: Final answer
    x = 121,643.52

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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.