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Finding the Fourth Proportional to 59,129.92, 88,568.78 and 47,836.80

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Solution

The fourth proportional to 59,129.92, 88,568.78 and 47,836.80 is: 71,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,129.92 : 88,568.78 = 47,836.80 : x
  2. Step 2: Convert to fraction form
    59,129.92/88,568.78 = 47,836.80/x
  3. Step 3: Cross multiply
    59,129.92x = 88,568.78 × 47,836.80
  4. Step 4: Simplify right side
    59,129.92x = 4,236,846,775.92
  5. Step 5: Solve for x
    x = 4,236,846,775.92/59,129.92
  6. Step 6: Final answer
    x = 71,653.18

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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.