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Finding the Fourth Proportional to 268,688.68, 370,793.22 and 147,831.56

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Solution

The fourth proportional to 268,688.68, 370,793.22 and 147,831.56 is: 204,009.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,688.68 : 370,793.22 = 147,831.56 : x
  2. Step 2: Convert to fraction form
    268,688.68/370,793.22 = 147,831.56/x
  3. Step 3: Cross multiply
    268,688.68x = 370,793.22 × 147,831.56
  4. Step 4: Simplify right side
    268,688.68x = 54,814,940,150.02
  5. Step 5: Solve for x
    x = 54,814,940,150.02/268,688.68
  6. Step 6: Final answer
    x = 204,009.12

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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.