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Finding the Fourth Proportional to 114,438.80, 171,658.20 and 79,009.40

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Solution

The fourth proportional to 114,438.80, 171,658.20 and 79,009.40 is: 118,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,438.80 : 171,658.20 = 79,009.40 : x
  2. Step 2: Convert to fraction form
    114,438.80/171,658.20 = 79,009.40/x
  3. Step 3: Cross multiply
    114,438.80x = 171,658.20 × 79,009.40
  4. Step 4: Simplify right side
    114,438.80x = 13,562,611,387.08
  5. Step 5: Solve for x
    x = 13,562,611,387.08/114,438.80
  6. Step 6: Final answer
    x = 118,514.10

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