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Finding the Fourth Proportional to 149,162.50, 205,847.49 and 82,094.50

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Solution

The fourth proportional to 149,162.50, 205,847.49 and 82,094.50 is: 113,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,162.50 : 205,847.49 = 82,094.50 : x
  2. Step 2: Convert to fraction form
    149,162.50/205,847.49 = 82,094.50/x
  3. Step 3: Cross multiply
    149,162.50x = 205,847.49 × 82,094.50
  4. Step 4: Simplify right side
    149,162.50x = 16,898,946,767.81
  5. Step 5: Solve for x
    x = 16,898,946,767.81/149,162.50
  6. Step 6: Final answer
    x = 113,292.19

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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.