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Finding the Fourth Proportional to 96,990.72, 133,852.68 and 64,669.56

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Solution

The fourth proportional to 96,990.72, 133,852.68 and 64,669.56 is: 89,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,990.72 : 133,852.68 = 64,669.56 : x
  2. Step 2: Convert to fraction form
    96,990.72/133,852.68 = 64,669.56/x
  3. Step 3: Cross multiply
    96,990.72x = 133,852.68 × 64,669.56
  4. Step 4: Simplify right side
    96,990.72x = 8,656,193,920.42
  5. Step 5: Solve for x
    x = 8,656,193,920.42/96,990.72
  6. Step 6: Final answer
    x = 89,247.65

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