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Finding the Fourth Proportional to 73,857.69, 110,816.60 and 34,390.53

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Solution

The fourth proportional to 73,857.69, 110,816.60 and 34,390.53 is: 51,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,857.69 : 110,816.60 = 34,390.53 : x
  2. Step 2: Convert to fraction form
    73,857.69/110,816.60 = 34,390.53/x
  3. Step 3: Cross multiply
    73,857.69x = 110,816.60 × 34,390.53
  4. Step 4: Simplify right side
    73,857.69x = 3,811,041,434.85
  5. Step 5: Solve for x
    x = 3,811,041,434.85/73,857.69
  6. Step 6: Final answer
    x = 51,599.79

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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.