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Finding the Fourth Proportional to 69,937.40, 104,937.10 and 36,649.56

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Solution

The fourth proportional to 69,937.40, 104,937.10 and 36,649.56 is: 54,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,937.40 : 104,937.10 = 36,649.56 : x
  2. Step 2: Convert to fraction form
    69,937.40/104,937.10 = 36,649.56/x
  3. Step 3: Cross multiply
    69,937.40x = 104,937.10 × 36,649.56
  4. Step 4: Simplify right side
    69,937.40x = 3,845,898,542.68
  5. Step 5: Solve for x
    x = 3,845,898,542.68/69,937.40
  6. Step 6: Final answer
    x = 54,990.59

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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.