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Finding the Fourth Proportional to 324,553.37, 486,831.87 and 87,898.10

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Solution

The fourth proportional to 324,553.37, 486,831.87 and 87,898.10 is: 131,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,553.37 : 486,831.87 = 87,898.10 : x
  2. Step 2: Convert to fraction form
    324,553.37/486,831.87 = 87,898.10/x
  3. Step 3: Cross multiply
    324,553.37x = 486,831.87 × 87,898.10
  4. Step 4: Simplify right side
    324,553.37x = 42,791,593,958.29
  5. Step 5: Solve for x
    x = 42,791,593,958.29/324,553.37
  6. Step 6: Final answer
    x = 131,847.64

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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.