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Finding the Fourth Proportional to 69,119.80, 103,696.12 and 22,372.64

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Solution

The fourth proportional to 69,119.80, 103,696.12 and 22,372.64 is: 33,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,119.80 : 103,696.12 = 22,372.64 : x
  2. Step 2: Convert to fraction form
    69,119.80/103,696.12 = 22,372.64/x
  3. Step 3: Cross multiply
    69,119.80x = 103,696.12 × 22,372.64
  4. Step 4: Simplify right side
    69,119.80x = 2,319,955,962.16
  5. Step 5: Solve for x
    x = 2,319,955,962.16/69,119.80
  6. Step 6: Final answer
    x = 33,564.27

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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.