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Finding the Fourth Proportional to 231,666.72, 347,519.52 and 73,917.60

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Solution

The fourth proportional to 231,666.72, 347,519.52 and 73,917.60 is: 110,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,666.72 : 347,519.52 = 73,917.60 : x
  2. Step 2: Convert to fraction form
    231,666.72/347,519.52 = 73,917.60/x
  3. Step 3: Cross multiply
    231,666.72x = 347,519.52 × 73,917.60
  4. Step 4: Simplify right side
    231,666.72x = 25,687,808,871.55
  5. Step 5: Solve for x
    x = 25,687,808,871.55/231,666.72
  6. Step 6: Final answer
    x = 110,882.60

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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.