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Finding the Fourth Proportional to 411,294.76, 616,712.90 and 126,904.58

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Solution

The fourth proportional to 411,294.76, 616,712.90 and 126,904.58 is: 190,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,294.76 : 616,712.90 = 126,904.58 : x
  2. Step 2: Convert to fraction form
    411,294.76/616,712.90 = 126,904.58/x
  3. Step 3: Cross multiply
    411,294.76x = 616,712.90 × 126,904.58
  4. Step 4: Simplify right side
    411,294.76x = 78,263,691,555.08
  5. Step 5: Solve for x
    x = 78,263,691,555.08/411,294.76
  6. Step 6: Final answer
    x = 190,286.14

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