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Finding the Fourth Proportional to 399,831.60, 599,528.70 and 162,906.60

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Solution

The fourth proportional to 399,831.60, 599,528.70 and 162,906.60 is: 244,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,831.60 : 599,528.70 = 162,906.60 : x
  2. Step 2: Convert to fraction form
    399,831.60/599,528.70 = 162,906.60/x
  3. Step 3: Cross multiply
    399,831.60x = 599,528.70 × 162,906.60
  4. Step 4: Simplify right side
    399,831.60x = 97,667,182,119.42
  5. Step 5: Solve for x
    x = 97,667,182,119.42/399,831.60
  6. Step 6: Final answer
    x = 244,270.79

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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.