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Finding the Fourth Proportional to 99,601.45, 137,450.01 and 54,889.45

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Solution

The fourth proportional to 99,601.45, 137,450.01 and 54,889.45 is: 75,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,601.45 : 137,450.01 = 54,889.45 : x
  2. Step 2: Convert to fraction form
    99,601.45/137,450.01 = 54,889.45/x
  3. Step 3: Cross multiply
    99,601.45x = 137,450.01 × 54,889.45
  4. Step 4: Simplify right side
    99,601.45x = 7,544,555,778.01
  5. Step 5: Solve for x
    x = 7,544,555,778.01/99,601.45
  6. Step 6: Final answer
    x = 75,747.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.