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Finding the Fourth Proportional to 72,113.76, 108,172.26 and 24,728.36

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Solution

The fourth proportional to 72,113.76, 108,172.26 and 24,728.36 is: 37,093.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,113.76 : 108,172.26 = 24,728.36 : x
  2. Step 2: Convert to fraction form
    72,113.76/108,172.26 = 24,728.36/x
  3. Step 3: Cross multiply
    72,113.76x = 108,172.26 × 24,728.36
  4. Step 4: Simplify right side
    72,113.76x = 2,674,922,046.43
  5. Step 5: Solve for x
    x = 2,674,922,046.43/72,113.76
  6. Step 6: Final answer
    x = 37,093.09

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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.