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Finding the Fourth Proportional to 211,550.20, 317,843.70 and 159,062.20

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Solution

The fourth proportional to 211,550.20, 317,843.70 and 159,062.20 is: 238,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,550.20 : 317,843.70 = 159,062.20 : x
  2. Step 2: Convert to fraction form
    211,550.20/317,843.70 = 159,062.20/x
  3. Step 3: Cross multiply
    211,550.20x = 317,843.70 × 159,062.20
  4. Step 4: Simplify right side
    211,550.20x = 50,556,918,178.14
  5. Step 5: Solve for x
    x = 50,556,918,178.14/211,550.20
  6. Step 6: Final answer
    x = 238,983.08

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1.5x scale

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.