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Finding the Fourth Proportional to 116,847, 161,248.86 and 66,550.68

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Solution

The fourth proportional to 116,847, 161,248.86 and 66,550.68 is: 91,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,847 : 161,248.86 = 66,550.68 : x
  2. Step 2: Convert to fraction form
    116,847/161,248.86 = 66,550.68/x
  3. Step 3: Cross multiply
    116,847x = 161,248.86 × 66,550.68
  4. Step 4: Simplify right side
    116,847x = 10,731,221,282.22
  5. Step 5: Solve for x
    x = 10,731,221,282.22/116,847
  6. Step 6: Final answer
    x = 91,839.94

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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.