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Finding the Fourth Proportional to 115,896.99, 159,975.90 and 73,512.93

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Solution

The fourth proportional to 115,896.99, 159,975.90 and 73,512.93 is: 101,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,896.99 : 159,975.90 = 73,512.93 : x
  2. Step 2: Convert to fraction form
    115,896.99/159,975.90 = 73,512.93/x
  3. Step 3: Cross multiply
    115,896.99x = 159,975.90 × 73,512.93
  4. Step 4: Simplify right side
    115,896.99x = 11,760,297,138.39
  5. Step 5: Solve for x
    x = 11,760,297,138.39/115,896.99
  6. Step 6: Final answer
    x = 101,471.98

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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.