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Finding the Fourth Proportional to 73,357.95, 109,047.72 and 71,202.85

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Solution

The fourth proportional to 73,357.95, 109,047.72 and 71,202.85 is: 105,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,357.95 : 109,047.72 = 71,202.85 : x
  2. Step 2: Convert to fraction form
    73,357.95/109,047.72 = 71,202.85/x
  3. Step 3: Cross multiply
    73,357.95x = 109,047.72 × 71,202.85
  4. Step 4: Simplify right side
    73,357.95x = 7,764,508,043.88
  5. Step 5: Solve for x
    x = 7,764,508,043.88/73,357.95
  6. Step 6: Final answer
    x = 105,844.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.