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Finding the Fourth Proportional to 40,160.79, 55,422.02 and 22,256.09

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Solution

The fourth proportional to 40,160.79, 55,422.02 and 22,256.09 is: 30,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,160.79 : 55,422.02 = 22,256.09 : x
  2. Step 2: Convert to fraction form
    40,160.79/55,422.02 = 22,256.09/x
  3. Step 3: Cross multiply
    40,160.79x = 55,422.02 × 22,256.09
  4. Step 4: Simplify right side
    40,160.79x = 1,233,477,465.10
  5. Step 5: Solve for x
    x = 1,233,477,465.10/40,160.79
  6. Step 6: Final answer
    x = 30,713.48

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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.