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Finding the Fourth Proportional to 69,642.64, 104,450.11 and 34,088.69

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Solution

The fourth proportional to 69,642.64, 104,450.11 and 34,088.69 is: 51,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,642.64 : 104,450.11 = 34,088.69 : x
  2. Step 2: Convert to fraction form
    69,642.64/104,450.11 = 34,088.69/x
  3. Step 3: Cross multiply
    69,642.64x = 104,450.11 × 34,088.69
  4. Step 4: Simplify right side
    69,642.64x = 3,560,566,727.56
  5. Step 5: Solve for x
    x = 3,560,566,727.56/69,642.64
  6. Step 6: Final answer
    x = 51,126.25

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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.