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Finding the Fourth Proportional to 135,997.40, 203,592.90 and 101,091.80

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Solution

The fourth proportional to 135,997.40, 203,592.90 and 101,091.80 is: 151,337.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,997.40 : 203,592.90 = 101,091.80 : x
  2. Step 2: Convert to fraction form
    135,997.40/203,592.90 = 101,091.80/x
  3. Step 3: Cross multiply
    135,997.40x = 203,592.90 × 101,091.80
  4. Step 4: Simplify right side
    135,997.40x = 20,581,572,728.22
  5. Step 5: Solve for x
    x = 20,581,572,728.22/135,997.40
  6. Step 6: Final answer
    x = 151,337.99

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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.