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Finding the Fourth Proportional to 69,322.92, 103,951.44 and 36,009.60

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Solution

The fourth proportional to 69,322.92, 103,951.44 and 36,009.60 is: 53,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,322.92 : 103,951.44 = 36,009.60 : x
  2. Step 2: Convert to fraction form
    69,322.92/103,951.44 = 36,009.60/x
  3. Step 3: Cross multiply
    69,322.92x = 103,951.44 × 36,009.60
  4. Step 4: Simplify right side
    69,322.92x = 3,743,249,773.82
  5. Step 5: Solve for x
    x = 3,743,249,773.82/69,322.92
  6. Step 6: Final answer
    x = 53,997.29

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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.