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Finding the Fourth Proportional to 215,801.05, 297,933.18 and 191,861.50

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Solution

The fourth proportional to 215,801.05, 297,933.18 and 191,861.50 is: 264,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,801.05 : 297,933.18 = 191,861.50 : x
  2. Step 2: Convert to fraction form
    215,801.05/297,933.18 = 191,861.50/x
  3. Step 3: Cross multiply
    215,801.05x = 297,933.18 × 191,861.50
  4. Step 4: Simplify right side
    215,801.05x = 57,161,906,814.57
  5. Step 5: Solve for x
    x = 57,161,906,814.57/215,801.05
  6. Step 6: Final answer
    x = 264,882.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.