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Finding the Fourth Proportional to 118,648.99, 163,735.48 and 66,976.96

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Solution

The fourth proportional to 118,648.99, 163,735.48 and 66,976.96 is: 92,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,648.99 : 163,735.48 = 66,976.96 : x
  2. Step 2: Convert to fraction form
    118,648.99/163,735.48 = 66,976.96/x
  3. Step 3: Cross multiply
    118,648.99x = 163,735.48 × 66,976.96
  4. Step 4: Simplify right side
    118,648.99x = 10,966,504,694.54
  5. Step 5: Solve for x
    x = 10,966,504,694.54/118,648.99
  6. Step 6: Final answer
    x = 92,428.13

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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.