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Finding the Fourth Proportional to 147,081.93, 220,469.30 and 72,098.25

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Solution

The fourth proportional to 147,081.93, 220,469.30 and 72,098.25 is: 108,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,081.93 : 220,469.30 = 72,098.25 : x
  2. Step 2: Convert to fraction form
    147,081.93/220,469.30 = 72,098.25/x
  3. Step 3: Cross multiply
    147,081.93x = 220,469.30 × 72,098.25
  4. Step 4: Simplify right side
    147,081.93x = 15,895,450,348.23
  5. Step 5: Solve for x
    x = 15,895,450,348.23/147,081.93
  6. Step 6: Final answer
    x = 108,072.08

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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.