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Finding the Fourth Proportional to 118,836.48, 163,993.60 and 65,844.48

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Solution

The fourth proportional to 118,836.48, 163,993.60 and 65,844.48 is: 90,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,836.48 : 163,993.60 = 65,844.48 : x
  2. Step 2: Convert to fraction form
    118,836.48/163,993.60 = 65,844.48/x
  3. Step 3: Cross multiply
    118,836.48x = 163,993.60 × 65,844.48
  4. Step 4: Simplify right side
    118,836.48x = 10,798,073,315.33
  5. Step 5: Solve for x
    x = 10,798,073,315.33/118,836.48
  6. Step 6: Final answer
    x = 90,864.97

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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.