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Finding the Fourth Proportional to 121,161.39, 181,770.84 and 38,055.39

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Solution

The fourth proportional to 121,161.39, 181,770.84 and 38,055.39 is: 57,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,161.39 : 181,770.84 = 38,055.39 : x
  2. Step 2: Convert to fraction form
    121,161.39/181,770.84 = 38,055.39/x
  3. Step 3: Cross multiply
    121,161.39x = 181,770.84 × 38,055.39
  4. Step 4: Simplify right side
    121,161.39x = 6,917,360,206.83
  5. Step 5: Solve for x
    x = 6,917,360,206.83/121,161.39
  6. Step 6: Final answer
    x = 57,092.12

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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.