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Finding the Fourth Proportional to 97,722.80, 146,584.20 and 87,873.20

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Solution

The fourth proportional to 97,722.80, 146,584.20 and 87,873.20 is: 131,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,722.80 : 146,584.20 = 87,873.20 : x
  2. Step 2: Convert to fraction form
    97,722.80/146,584.20 = 87,873.20/x
  3. Step 3: Cross multiply
    97,722.80x = 146,584.20 × 87,873.20
  4. Step 4: Simplify right side
    97,722.80x = 12,880,822,723.44
  5. Step 5: Solve for x
    x = 12,880,822,723.44/97,722.80
  6. Step 6: Final answer
    x = 131,809.80

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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.