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Finding the Fourth Proportional to 99,737.35, 149,481.29 and 49,831.42

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Solution

The fourth proportional to 99,737.35, 149,481.29 and 49,831.42 is: 74,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,737.35 : 149,481.29 = 49,831.42 : x
  2. Step 2: Convert to fraction form
    99,737.35/149,481.29 = 49,831.42/x
  3. Step 3: Cross multiply
    99,737.35x = 149,481.29 × 49,831.42
  4. Step 4: Simplify right side
    99,737.35x = 7,448,864,694.97
  5. Step 5: Solve for x
    x = 7,448,864,694.97/99,737.35
  6. Step 6: Final answer
    x = 74,684.81

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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.