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Finding the Fourth Proportional to 147,302.40, 220,982.40 and 58,540.80

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Solution

The fourth proportional to 147,302.40, 220,982.40 and 58,540.80 is: 87,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,302.40 : 220,982.40 = 58,540.80 : x
  2. Step 2: Convert to fraction form
    147,302.40/220,982.40 = 58,540.80/x
  3. Step 3: Cross multiply
    147,302.40x = 220,982.40 × 58,540.80
  4. Step 4: Simplify right side
    147,302.40x = 12,936,486,481.92
  5. Step 5: Solve for x
    x = 12,936,486,481.92/147,302.40
  6. Step 6: Final answer
    x = 87,822.65

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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.