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Finding the Fourth Proportional to 98,379.92, 147,601.02 and 35,198.66

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Solution

The fourth proportional to 98,379.92, 147,601.02 and 35,198.66 is: 52,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,379.92 : 147,601.02 = 35,198.66 : x
  2. Step 2: Convert to fraction form
    98,379.92/147,601.02 = 35,198.66/x
  3. Step 3: Cross multiply
    98,379.92x = 147,601.02 × 35,198.66
  4. Step 4: Simplify right side
    98,379.92x = 5,195,357,380.63
  5. Step 5: Solve for x
    x = 5,195,357,380.63/98,379.92
  6. Step 6: Final answer
    x = 52,809.13

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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.