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Finding the Fourth Proportional to 72,304.16, 108,460.08 and 22,418.72

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Solution

The fourth proportional to 72,304.16, 108,460.08 and 22,418.72 is: 33,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,304.16 : 108,460.08 = 22,418.72 : x
  2. Step 2: Convert to fraction form
    72,304.16/108,460.08 = 22,418.72/x
  3. Step 3: Cross multiply
    72,304.16x = 108,460.08 × 22,418.72
  4. Step 4: Simplify right side
    72,304.16x = 2,431,536,164.70
  5. Step 5: Solve for x
    x = 2,431,536,164.70/72,304.16
  6. Step 6: Final answer
    x = 33,629.27

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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.