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Finding the Fourth Proportional to 149,314.50, 206,054.01 and 82,246.50

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Solution

The fourth proportional to 149,314.50, 206,054.01 and 82,246.50 is: 113,500.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,314.50 : 206,054.01 = 82,246.50 : x
  2. Step 2: Convert to fraction form
    149,314.50/206,054.01 = 82,246.50/x
  3. Step 3: Cross multiply
    149,314.50x = 206,054.01 × 82,246.50
  4. Step 4: Simplify right side
    149,314.50x = 16,947,221,133.47
  5. Step 5: Solve for x
    x = 16,947,221,133.47/149,314.50
  6. Step 6: Final answer
    x = 113,500.17

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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.