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Finding the Fourth Proportional to 170,063.20, 255,094.80 and 119,324.80

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Solution

The fourth proportional to 170,063.20, 255,094.80 and 119,324.80 is: 178,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,063.20 : 255,094.80 = 119,324.80 : x
  2. Step 2: Convert to fraction form
    170,063.20/255,094.80 = 119,324.80/x
  3. Step 3: Cross multiply
    170,063.20x = 255,094.80 × 119,324.80
  4. Step 4: Simplify right side
    170,063.20x = 30,439,135,991.04
  5. Step 5: Solve for x
    x = 30,439,135,991.04/170,063.20
  6. Step 6: Final answer
    x = 178,987.20

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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.