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Finding the Fourth Proportional to 86,159.97, 118,906.79 and 50,353.92

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Solution

The fourth proportional to 86,159.97, 118,906.79 and 50,353.92 is: 69,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159.97 : 118,906.79 = 50,353.92 : x
  2. Step 2: Convert to fraction form
    86,159.97/118,906.79 = 50,353.92/x
  3. Step 3: Cross multiply
    86,159.97x = 118,906.79 × 50,353.92
  4. Step 4: Simplify right side
    86,159.97x = 5,987,422,739.35
  5. Step 5: Solve for x
    x = 5,987,422,739.35/86,159.97
  6. Step 6: Final answer
    x = 69,491.93

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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.