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Finding the Fourth Proportional to 92,509.20, 138,540.12 and 52,946.40

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Solution

The fourth proportional to 92,509.20, 138,540.12 and 52,946.40 is: 79,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,509.20 : 138,540.12 = 52,946.40 : x
  2. Step 2: Convert to fraction form
    92,509.20/138,540.12 = 52,946.40/x
  3. Step 3: Cross multiply
    92,509.20x = 138,540.12 × 52,946.40
  4. Step 4: Simplify right side
    92,509.20x = 7,335,200,609.57
  5. Step 5: Solve for x
    x = 7,335,200,609.57/92,509.20
  6. Step 6: Final answer
    x = 79,291.58

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