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Finding the Fourth Proportional to 73,106.75, 109,410.63 and 61,273.88

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Solution

The fourth proportional to 73,106.75, 109,410.63 and 61,273.88 is: 91,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.75 : 109,410.63 = 61,273.88 : x
  2. Step 2: Convert to fraction form
    73,106.75/109,410.63 = 61,273.88/x
  3. Step 3: Cross multiply
    73,106.75x = 109,410.63 × 61,273.88
  4. Step 4: Simplify right side
    73,106.75x = 6,704,013,933.69
  5. Step 5: Solve for x
    x = 6,704,013,933.69/73,106.75
  6. Step 6: Final answer
    x = 91,701.71

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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.