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Finding the Fourth Proportional to 79,188.72, 109,281.12 and 45,654.72

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Solution

The fourth proportional to 79,188.72, 109,281.12 and 45,654.72 is: 63,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,188.72 : 109,281.12 = 45,654.72 : x
  2. Step 2: Convert to fraction form
    79,188.72/109,281.12 = 45,654.72/x
  3. Step 3: Cross multiply
    79,188.72x = 109,281.12 × 45,654.72
  4. Step 4: Simplify right side
    79,188.72x = 4,989,198,934.89
  5. Step 5: Solve for x
    x = 4,989,198,934.89/79,188.72
  6. Step 6: Final answer
    x = 63,003.91

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