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Finding the Fourth Proportional to 273,800.70, 410,662.65 and 86,831.10

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Solution

The fourth proportional to 273,800.70, 410,662.65 and 86,831.10 is: 130,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,800.70 : 410,662.65 = 86,831.10 : x
  2. Step 2: Convert to fraction form
    273,800.70/410,662.65 = 86,831.10/x
  3. Step 3: Cross multiply
    273,800.70x = 410,662.65 × 86,831.10
  4. Step 4: Simplify right side
    273,800.70x = 35,658,289,628.42
  5. Step 5: Solve for x
    x = 35,658,289,628.42/273,800.70
  6. Step 6: Final answer
    x = 130,234.47

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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.