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Finding the Fourth Proportional to 69,739.66, 104,550.54 and 30,267.10

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Solution

The fourth proportional to 69,739.66, 104,550.54 and 30,267.10 is: 45,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,739.66 : 104,550.54 = 30,267.10 : x
  2. Step 2: Convert to fraction form
    69,739.66/104,550.54 = 30,267.10/x
  3. Step 3: Cross multiply
    69,739.66x = 104,550.54 × 30,267.10
  4. Step 4: Simplify right side
    69,739.66x = 3,164,441,649.23
  5. Step 5: Solve for x
    x = 3,164,441,649.23/69,739.66
  6. Step 6: Final answer
    x = 45,375.07

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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.