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Finding the Fourth Proportional to 95,809.92, 132,111.36 and 78,529.92

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Solution

The fourth proportional to 95,809.92, 132,111.36 and 78,529.92 is: 108,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,809.92 : 132,111.36 = 78,529.92 : x
  2. Step 2: Convert to fraction form
    95,809.92/132,111.36 = 78,529.92/x
  3. Step 3: Cross multiply
    95,809.92x = 132,111.36 × 78,529.92
  4. Step 4: Simplify right side
    95,809.92x = 10,374,694,531.89
  5. Step 5: Solve for x
    x = 10,374,694,531.89/95,809.92
  6. Step 6: Final answer
    x = 108,284.14

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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.