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Finding the Fourth Proportional to 73,268.60, 109,611.30 and 63,516.20

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Solution

The fourth proportional to 73,268.60, 109,611.30 and 63,516.20 is: 95,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,268.60 : 109,611.30 = 63,516.20 : x
  2. Step 2: Convert to fraction form
    73,268.60/109,611.30 = 63,516.20/x
  3. Step 3: Cross multiply
    73,268.60x = 109,611.30 × 63,516.20
  4. Step 4: Simplify right side
    73,268.60x = 6,962,093,253.06
  5. Step 5: Solve for x
    x = 6,962,093,253.06/73,268.60
  6. Step 6: Final answer
    x = 95,021.51

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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.