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Finding the Fourth Proportional to 136,081.29, 203,826.54 and 65,813.25

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Solution

The fourth proportional to 136,081.29, 203,826.54 and 65,813.25 is: 98,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,081.29 : 203,826.54 = 65,813.25 : x
  2. Step 2: Convert to fraction form
    136,081.29/203,826.54 = 65,813.25/x
  3. Step 3: Cross multiply
    136,081.29x = 203,826.54 × 65,813.25
  4. Step 4: Simplify right side
    136,081.29x = 13,414,487,033.66
  5. Step 5: Solve for x
    x = 13,414,487,033.66/136,081.29
  6. Step 6: Final answer
    x = 98,577.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.