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Finding the Fourth Proportional to 223,835.40, 335,753.10 and 215,233.80

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Solution

The fourth proportional to 223,835.40, 335,753.10 and 215,233.80 is: 322,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,835.40 : 335,753.10 = 215,233.80 : x
  2. Step 2: Convert to fraction form
    223,835.40/335,753.10 = 215,233.80/x
  3. Step 3: Cross multiply
    223,835.40x = 335,753.10 × 215,233.80
  4. Step 4: Simplify right side
    223,835.40x = 72,265,415,574.78
  5. Step 5: Solve for x
    x = 72,265,415,574.78/223,835.40
  6. Step 6: Final answer
    x = 322,850.70

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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.