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Finding the Fourth Proportional to 69,649.34, 104,490.22 and 55,471.50

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Solution

The fourth proportional to 69,649.34, 104,490.22 and 55,471.50 is: 83,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,649.34 : 104,490.22 = 55,471.50 : x
  2. Step 2: Convert to fraction form
    69,649.34/104,490.22 = 55,471.50/x
  3. Step 3: Cross multiply
    69,649.34x = 104,490.22 × 55,471.50
  4. Step 4: Simplify right side
    69,649.34x = 5,796,229,238.73
  5. Step 5: Solve for x
    x = 5,796,229,238.73/69,649.34
  6. Step 6: Final answer
    x = 83,220.16

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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.