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Finding the Fourth Proportional to 72,622.92, 108,949.86 and 25,239.42

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Solution

The fourth proportional to 72,622.92, 108,949.86 and 25,239.42 is: 37,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,622.92 : 108,949.86 = 25,239.42 : x
  2. Step 2: Convert to fraction form
    72,622.92/108,949.86 = 25,239.42/x
  3. Step 3: Cross multiply
    72,622.92x = 108,949.86 × 25,239.42
  4. Step 4: Simplify right side
    72,622.92x = 2,749,831,275.48
  5. Step 5: Solve for x
    x = 2,749,831,275.48/72,622.92
  6. Step 6: Final answer
    x = 37,864.51

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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.