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Finding the Fourth Proportional to 72,790.06, 109,186.44 and 22,869.22

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Solution

The fourth proportional to 72,790.06, 109,186.44 and 22,869.22 is: 34,304.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,790.06 : 109,186.44 = 22,869.22 : x
  2. Step 2: Convert to fraction form
    72,790.06/109,186.44 = 22,869.22/x
  3. Step 3: Cross multiply
    72,790.06x = 109,186.44 × 22,869.22
  4. Step 4: Simplify right side
    72,790.06x = 2,497,008,717.38
  5. Step 5: Solve for x
    x = 2,497,008,717.38/72,790.06
  6. Step 6: Final answer
    x = 34,304.25

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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.