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Finding the Fourth Proportional to 78,756.72, 118,212.84 and 34,414.08

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Solution

The fourth proportional to 78,756.72, 118,212.84 and 34,414.08 is: 51,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,756.72 : 118,212.84 = 34,414.08 : x
  2. Step 2: Convert to fraction form
    78,756.72/118,212.84 = 34,414.08/x
  3. Step 3: Cross multiply
    78,756.72x = 118,212.84 × 34,414.08
  4. Step 4: Simplify right side
    78,756.72x = 4,068,186,132.79
  5. Step 5: Solve for x
    x = 4,068,186,132.79/78,756.72
  6. Step 6: Final answer
    x = 51,655.10

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