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Finding the Fourth Proportional to 159,857.62, 220,603.53 and 88,237.65

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Solution

The fourth proportional to 159,857.62, 220,603.53 and 88,237.65 is: 121,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,857.62 : 220,603.53 = 88,237.65 : x
  2. Step 2: Convert to fraction form
    159,857.62/220,603.53 = 88,237.65/x
  3. Step 3: Cross multiply
    159,857.62x = 220,603.53 × 88,237.65
  4. Step 4: Simplify right side
    159,857.62x = 19,465,538,227.06
  5. Step 5: Solve for x
    x = 19,465,538,227.06/159,857.62
  6. Step 6: Final answer
    x = 121,767.97

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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.