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Finding the Fourth Proportional to 217,041.52, 325,655.20 and 111,934.30

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Solution

The fourth proportional to 217,041.52, 325,655.20 and 111,934.30 is: 167,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.52 : 325,655.20 = 111,934.30 : x
  2. Step 2: Convert to fraction form
    217,041.52/325,655.20 = 111,934.30/x
  3. Step 3: Cross multiply
    217,041.52x = 325,655.20 × 111,934.30
  4. Step 4: Simplify right side
    217,041.52x = 36,451,986,853.36
  5. Step 5: Solve for x
    x = 36,451,986,853.36/217,041.52
  6. Step 6: Final answer
    x = 167,949.37

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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.