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Finding the Fourth Proportional to 223,390.80, 334,891.80 and 134,679.60

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Solution

The fourth proportional to 223,390.80, 334,891.80 and 134,679.60 is: 201,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,390.80 : 334,891.80 = 134,679.60 : x
  2. Step 2: Convert to fraction form
    223,390.80/334,891.80 = 134,679.60/x
  3. Step 3: Cross multiply
    223,390.80x = 334,891.80 × 134,679.60
  4. Step 4: Simplify right side
    223,390.80x = 45,103,093,667.28
  5. Step 5: Solve for x
    x = 45,103,093,667.28/223,390.80
  6. Step 6: Final answer
    x = 201,902.20

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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.