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Finding the Fourth Proportional to 121,051.80, 181,578.98 and 36,825.68

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Solution

The fourth proportional to 121,051.80, 181,578.98 and 36,825.68 is: 55,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,051.80 : 181,578.98 = 36,825.68 : x
  2. Step 2: Convert to fraction form
    121,051.80/181,578.98 = 36,825.68/x
  3. Step 3: Cross multiply
    121,051.80x = 181,578.98 × 36,825.68
  4. Step 4: Simplify right side
    121,051.80x = 6,686,769,412.21
  5. Step 5: Solve for x
    x = 6,686,769,412.21/121,051.80
  6. Step 6: Final answer
    x = 55,238.91

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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.