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Finding the Fourth Proportional to 92,679,223.20, 139,068,601.20 and 38,831,978.40

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Solution

The fourth proportional to 92,679,223.20, 139,068,601.20 and 38,831,978.40 is: 58,268,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679,223.20 : 139,068,601.20 = 38,831,978.40 : x
  2. Step 2: Convert to fraction form
    92,679,223.20/139,068,601.20 = 38,831,978.40/x
  3. Step 3: Cross multiply
    92,679,223.20x = 139,068,601.20 × 38,831,978.40
  4. Step 4: Simplify right side
    92,679,223.20x = 5,400,308,917,916,613
  5. Step 5: Solve for x
    x = 5,400,308,917,916,613/92,679,223.20
  6. Step 6: Final answer
    x = 58,268,819.39

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