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Finding the Fourth Proportional to 117,889.26, 162,698.56 and 72,593.80

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Solution

The fourth proportional to 117,889.26, 162,698.56 and 72,593.80 is: 100,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.26 : 162,698.56 = 72,593.80 : x
  2. Step 2: Convert to fraction form
    117,889.26/162,698.56 = 72,593.80/x
  3. Step 3: Cross multiply
    117,889.26x = 162,698.56 × 72,593.80
  4. Step 4: Simplify right side
    117,889.26x = 11,810,906,724.93
  5. Step 5: Solve for x
    x = 11,810,906,724.93/117,889.26
  6. Step 6: Final answer
    x = 100,186.45

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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.