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Finding the Fourth Proportional to 115,236.54, 159,036.87 and 69,926.00

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Solution

The fourth proportional to 115,236.54, 159,036.87 and 69,926.00 is: 96,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,236.54 : 159,036.87 = 69,926.00 : x
  2. Step 2: Convert to fraction form
    115,236.54/159,036.87 = 69,926.00/x
  3. Step 3: Cross multiply
    115,236.54x = 159,036.87 × 69,926.00
  4. Step 4: Simplify right side
    115,236.54x = 11,120,812,139.91
  5. Step 5: Solve for x
    x = 11,120,812,139.91/115,236.54
  6. Step 6: Final answer
    x = 96,504.22

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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.