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Finding the Fourth Proportional to 231,998.31, 347,923.35 and 74,189.25

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Solution

The fourth proportional to 231,998.31, 347,923.35 and 74,189.25 is: 111,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,998.31 : 347,923.35 = 74,189.25 : x
  2. Step 2: Convert to fraction form
    231,998.31/347,923.35 = 74,189.25/x
  3. Step 3: Cross multiply
    231,998.31x = 347,923.35 × 74,189.25
  4. Step 4: Simplify right side
    231,998.31x = 25,812,172,393.99
  5. Step 5: Solve for x
    x = 25,812,172,393.99/231,998.31
  6. Step 6: Final answer
    x = 111,260.17

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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.