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Finding the Fourth Proportional to 80,693.34, 121,089.33 and 47,478.30

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Solution

The fourth proportional to 80,693.34, 121,089.33 and 47,478.30 is: 71,246.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,693.34 : 121,089.33 = 47,478.30 : x
  2. Step 2: Convert to fraction form
    80,693.34/121,089.33 = 47,478.30/x
  3. Step 3: Cross multiply
    80,693.34x = 121,089.33 × 47,478.30
  4. Step 4: Simplify right side
    80,693.34x = 5,749,115,536.54
  5. Step 5: Solve for x
    x = 5,749,115,536.54/80,693.34
  6. Step 6: Final answer
    x = 71,246.47

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