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Finding the Fourth Proportional to 69,130.98, 103,711.59 and 22,388.58

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Solution

The fourth proportional to 69,130.98, 103,711.59 and 22,388.58 is: 33,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,130.98 : 103,711.59 = 22,388.58 : x
  2. Step 2: Convert to fraction form
    69,130.98/103,711.59 = 22,388.58/x
  3. Step 3: Cross multiply
    69,130.98x = 103,711.59 × 22,388.58
  4. Step 4: Simplify right side
    69,130.98x = 2,321,955,229.64
  5. Step 5: Solve for x
    x = 2,321,955,229.64/69,130.98
  6. Step 6: Final answer
    x = 33,587.77

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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.