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Finding the Fourth Proportional to 107,880.98, 161,876.04 and 72,746.78

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Solution

The fourth proportional to 107,880.98, 161,876.04 and 72,746.78 is: 109,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,880.98 : 161,876.04 = 72,746.78 : x
  2. Step 2: Convert to fraction form
    107,880.98/161,876.04 = 72,746.78/x
  3. Step 3: Cross multiply
    107,880.98x = 161,876.04 × 72,746.78
  4. Step 4: Simplify right side
    107,880.98x = 11,775,960,669.15
  5. Step 5: Solve for x
    x = 11,775,960,669.15/107,880.98
  6. Step 6: Final answer
    x = 109,156.97

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