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Finding the Fourth Proportional to 115,793.40, 159,826.32 and 68,062.08

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Solution

The fourth proportional to 115,793.40, 159,826.32 and 68,062.08 is: 93,944.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,793.40 : 159,826.32 = 68,062.08 : x
  2. Step 2: Convert to fraction form
    115,793.40/159,826.32 = 68,062.08/x
  3. Step 3: Cross multiply
    115,793.40x = 159,826.32 × 68,062.08
  4. Step 4: Simplify right side
    115,793.40x = 10,878,111,777.95
  5. Step 5: Solve for x
    x = 10,878,111,777.95/115,793.40
  6. Step 6: Final answer
    x = 93,944.14

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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.