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Finding the Fourth Proportional to 223,679.07, 335,507.40 and 83,426.76

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Solution

The fourth proportional to 223,679.07, 335,507.40 and 83,426.76 is: 125,135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,679.07 : 335,507.40 = 83,426.76 : x
  2. Step 2: Convert to fraction form
    223,679.07/335,507.40 = 83,426.76/x
  3. Step 3: Cross multiply
    223,679.07x = 335,507.40 × 83,426.76
  4. Step 4: Simplify right side
    223,679.07x = 27,990,295,338.02
  5. Step 5: Solve for x
    x = 27,990,295,338.02/223,679.07
  6. Step 6: Final answer
    x = 125,135.96

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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.