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Finding the Fourth Proportional to 372,623.56, 559,101.45 and 135,910.90

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Solution

The fourth proportional to 372,623.56, 559,101.45 and 135,910.90 is: 203,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,623.56 : 559,101.45 = 135,910.90 : x
  2. Step 2: Convert to fraction form
    372,623.56/559,101.45 = 135,910.90/x
  3. Step 3: Cross multiply
    372,623.56x = 559,101.45 × 135,910.90
  4. Step 4: Simplify right side
    372,623.56x = 75,987,981,260.81
  5. Step 5: Solve for x
    x = 75,987,981,260.81/372,623.56
  6. Step 6: Final answer
    x = 203,926.94

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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.