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Finding the Fourth Proportional to 234,202.20, 351,313.01 and 67,990.20

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Solution

The fourth proportional to 234,202.20, 351,313.01 and 67,990.20 is: 101,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,202.20 : 351,313.01 = 67,990.20 : x
  2. Step 2: Convert to fraction form
    234,202.20/351,313.01 = 67,990.20/x
  3. Step 3: Cross multiply
    234,202.20x = 351,313.01 × 67,990.20
  4. Step 4: Simplify right side
    234,202.20x = 23,885,839,715.99
  5. Step 5: Solve for x
    x = 23,885,839,715.99/234,202.20
  6. Step 6: Final answer
    x = 101,988.11

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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.