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Finding the Fourth Proportional to 72,220.92, 108,292.75 and 24,168.38

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Solution

The fourth proportional to 72,220.92, 108,292.75 and 24,168.38 is: 36,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220.92 : 108,292.75 = 24,168.38 : x
  2. Step 2: Convert to fraction form
    72,220.92/108,292.75 = 24,168.38/x
  3. Step 3: Cross multiply
    72,220.92x = 108,292.75 × 24,168.38
  4. Step 4: Simplify right side
    72,220.92x = 2,617,259,731.36
  5. Step 5: Solve for x
    x = 2,617,259,731.36/72,220.92
  6. Step 6: Final answer
    x = 36,239.64

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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.