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Finding the Fourth Proportional to 223,426.20, 335,139.30 and 188,434.20

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Solution

The fourth proportional to 223,426.20, 335,139.30 and 188,434.20 is: 282,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,426.20 : 335,139.30 = 188,434.20 : x
  2. Step 2: Convert to fraction form
    223,426.20/335,139.30 = 188,434.20/x
  3. Step 3: Cross multiply
    223,426.20x = 335,139.30 × 188,434.20
  4. Step 4: Simplify right side
    223,426.20x = 63,151,705,884.06
  5. Step 5: Solve for x
    x = 63,151,705,884.06/223,426.20
  6. Step 6: Final answer
    x = 282,651.30

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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.