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Finding the Fourth Proportional to 73,211.94, 109,703.01 and 43,613.58

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Solution

The fourth proportional to 73,211.94, 109,703.01 and 43,613.58 is: 65,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,211.94 : 109,703.01 = 43,613.58 : x
  2. Step 2: Convert to fraction form
    73,211.94/109,703.01 = 43,613.58/x
  3. Step 3: Cross multiply
    73,211.94x = 109,703.01 × 43,613.58
  4. Step 4: Simplify right side
    73,211.94x = 4,784,541,002.88
  5. Step 5: Solve for x
    x = 4,784,541,002.88/73,211.94
  6. Step 6: Final answer
    x = 65,351.92

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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.