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Finding the Fourth Proportional to 72,208.44, 108,322.92 and 22,292.64

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Solution

The fourth proportional to 72,208.44, 108,322.92 and 22,292.64 is: 33,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,208.44 : 108,322.92 = 22,292.64 : x
  2. Step 2: Convert to fraction form
    72,208.44/108,322.92 = 22,292.64/x
  3. Step 3: Cross multiply
    72,208.44x = 108,322.92 × 22,292.64
  4. Step 4: Simplify right side
    72,208.44x = 2,414,803,859.31
  5. Step 5: Solve for x
    x = 2,414,803,859.31/72,208.44
  6. Step 6: Final answer
    x = 33,442.13

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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.