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Finding the Fourth Proportional to 76,913.47, 115,204.13 and 75,031.29

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Solution

The fourth proportional to 76,913.47, 115,204.13 and 75,031.29 is: 112,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913.47 : 115,204.13 = 75,031.29 : x
  2. Step 2: Convert to fraction form
    76,913.47/115,204.13 = 75,031.29/x
  3. Step 3: Cross multiply
    76,913.47x = 115,204.13 × 75,031.29
  4. Step 4: Simplify right side
    76,913.47x = 8,643,914,242.79
  5. Step 5: Solve for x
    x = 8,643,914,242.79/76,913.47
  6. Step 6: Final answer
    x = 112,384.92

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