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Finding the Fourth Proportional to 108,133.93, 162,200.82 and 78,738.76

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Solution

The fourth proportional to 108,133.93, 162,200.82 and 78,738.76 is: 118,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,133.93 : 162,200.82 = 78,738.76 : x
  2. Step 2: Convert to fraction form
    108,133.93/162,200.82 = 78,738.76/x
  3. Step 3: Cross multiply
    108,133.93x = 162,200.82 × 78,738.76
  4. Step 4: Simplify right side
    108,133.93x = 12,771,491,437.78
  5. Step 5: Solve for x
    x = 12,771,491,437.78/108,133.93
  6. Step 6: Final answer
    x = 118,108.09

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