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Finding the Fourth Proportional to 69,139.80, 103,726.14 and 22,392.60

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Solution

The fourth proportional to 69,139.80, 103,726.14 and 22,392.60 is: 33,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,139.80 : 103,726.14 = 22,392.60 : x
  2. Step 2: Convert to fraction form
    69,139.80/103,726.14 = 22,392.60/x
  3. Step 3: Cross multiply
    69,139.80x = 103,726.14 × 22,392.60
  4. Step 4: Simplify right side
    69,139.80x = 2,322,697,962.56
  5. Step 5: Solve for x
    x = 2,322,697,962.56/69,139.80
  6. Step 6: Final answer
    x = 33,594.22

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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.