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Finding the Fourth Proportional to 115,788.38, 159,787.96 and 62,796.38

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Solution

The fourth proportional to 115,788.38, 159,787.96 and 62,796.38 is: 86,659.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,788.38 : 159,787.96 = 62,796.38 : x
  2. Step 2: Convert to fraction form
    115,788.38/159,787.96 = 62,796.38/x
  3. Step 3: Cross multiply
    115,788.38x = 159,787.96 × 62,796.38
  4. Step 4: Simplify right side
    115,788.38x = 10,034,104,499.65
  5. Step 5: Solve for x
    x = 10,034,104,499.65/115,788.38
  6. Step 6: Final answer
    x = 86,659.00

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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.