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Finding the Fourth Proportional to 40,137.86, 55,390.69 and 22,233.14

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Solution

The fourth proportional to 40,137.86, 55,390.69 and 22,233.14 is: 30,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,137.86 : 55,390.69 = 22,233.14 : x
  2. Step 2: Convert to fraction form
    40,137.86/55,390.69 = 22,233.14/x
  3. Step 3: Cross multiply
    40,137.86x = 55,390.69 × 22,233.14
  4. Step 4: Simplify right side
    40,137.86x = 1,231,508,965.47
  5. Step 5: Solve for x
    x = 1,231,508,965.47/40,137.86
  6. Step 6: Final answer
    x = 30,681.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.