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Finding the Fourth Proportional to 121,143.96, 181,722.22 and 36,897.62

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Solution

The fourth proportional to 121,143.96, 181,722.22 and 36,897.62 is: 55,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143.96 : 181,722.22 = 36,897.62 : x
  2. Step 2: Convert to fraction form
    121,143.96/181,722.22 = 36,897.62/x
  3. Step 3: Cross multiply
    121,143.96x = 181,722.22 × 36,897.62
  4. Step 4: Simplify right side
    121,143.96x = 6,705,116,418.26
  5. Step 5: Solve for x
    x = 6,705,116,418.26/121,143.96
  6. Step 6: Final answer
    x = 55,348.33

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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.