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Finding the Fourth Proportional to 202,196.15, 278,831.36 and 156,857.61

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Solution

The fourth proportional to 202,196.15, 278,831.36 and 156,857.61 is: 216,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,196.15 : 278,831.36 = 156,857.61 : x
  2. Step 2: Convert to fraction form
    202,196.15/278,831.36 = 156,857.61/x
  3. Step 3: Cross multiply
    202,196.15x = 278,831.36 × 156,857.61
  4. Step 4: Simplify right side
    202,196.15x = 43,736,822,160.41
  5. Step 5: Solve for x
    x = 43,736,822,160.41/202,196.15
  6. Step 6: Final answer
    x = 216,308.88

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