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Finding the Fourth Proportional to 298,800.33, 412,332.46 and 162,831.39

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Solution

The fourth proportional to 298,800.33, 412,332.46 and 162,831.39 is: 224,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,800.33 : 412,332.46 = 162,831.39 : x
  2. Step 2: Convert to fraction form
    298,800.33/412,332.46 = 162,831.39/x
  3. Step 3: Cross multiply
    298,800.33x = 412,332.46 × 162,831.39
  4. Step 4: Simplify right side
    298,800.33x = 67,140,664,728.10
  5. Step 5: Solve for x
    x = 67,140,664,728.10/298,800.33
  6. Step 6: Final answer
    x = 224,700.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.