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Finding the Fourth Proportional to 96,991.71, 133,849.79 and 54,550.25

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Solution

The fourth proportional to 96,991.71, 133,849.79 and 54,550.25 is: 75,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,991.71 : 133,849.79 = 54,550.25 : x
  2. Step 2: Convert to fraction form
    96,991.71/133,849.79 = 54,550.25/x
  3. Step 3: Cross multiply
    96,991.71x = 133,849.79 × 54,550.25
  4. Step 4: Simplify right side
    96,991.71x = 7,301,538,564.95
  5. Step 5: Solve for x
    x = 7,301,538,564.95/96,991.71
  6. Step 6: Final answer
    x = 75,280.03

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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.