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Finding the Fourth Proportional to 121,107.96, 181,640.52 and 36,847.80

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Solution

The fourth proportional to 121,107.96, 181,640.52 and 36,847.80 is: 55,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,107.96 : 181,640.52 = 36,847.80 : x
  2. Step 2: Convert to fraction form
    121,107.96/181,640.52 = 36,847.80/x
  3. Step 3: Cross multiply
    121,107.96x = 181,640.52 × 36,847.80
  4. Step 4: Simplify right side
    121,107.96x = 6,693,053,552.86
  5. Step 5: Solve for x
    x = 6,693,053,552.86/121,107.96
  6. Step 6: Final answer
    x = 55,265.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.