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Finding the Fourth Proportional to 78,808.34, 118,145.97 and 36,666.66

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Solution

The fourth proportional to 78,808.34, 118,145.97 and 36,666.66 is: 54,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,808.34 : 118,145.97 = 36,666.66 : x
  2. Step 2: Convert to fraction form
    78,808.34/118,145.97 = 36,666.66/x
  3. Step 3: Cross multiply
    78,808.34x = 118,145.97 × 36,666.66
  4. Step 4: Simplify right side
    78,808.34x = 4,332,018,112.36
  5. Step 5: Solve for x
    x = 4,332,018,112.36/78,808.34
  6. Step 6: Final answer
    x = 54,969.03

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