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Finding the Fourth Proportional to 69,159.78, 103,756.02 and 22,412.64

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Solution

The fourth proportional to 69,159.78, 103,756.02 and 22,412.64 is: 33,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,159.78 : 103,756.02 = 22,412.64 : x
  2. Step 2: Convert to fraction form
    69,159.78/103,756.02 = 22,412.64/x
  3. Step 3: Cross multiply
    69,159.78x = 103,756.02 × 22,412.64
  4. Step 4: Simplify right side
    69,159.78x = 2,325,446,324.09
  5. Step 5: Solve for x
    x = 2,325,446,324.09/69,159.78
  6. Step 6: Final answer
    x = 33,624.26

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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.