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Finding the Fourth Proportional to 121,171.42, 181,763.92 and 36,934.33

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Solution

The fourth proportional to 121,171.42, 181,763.92 and 36,934.33 is: 55,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,171.42 : 181,763.92 = 36,934.33 : x
  2. Step 2: Convert to fraction form
    121,171.42/181,763.92 = 36,934.33/x
  3. Step 3: Cross multiply
    121,171.42x = 181,763.92 × 36,934.33
  4. Step 4: Simplify right side
    121,171.42x = 6,713,328,639.82
  5. Step 5: Solve for x
    x = 6,713,328,639.82/121,171.42
  6. Step 6: Final answer
    x = 55,403.57

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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.