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Finding the Fourth Proportional to 77,721.60, 116,582.40 and 48,230.40

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Solution

The fourth proportional to 77,721.60, 116,582.40 and 48,230.40 is: 72,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721.60 : 116,582.40 = 48,230.40 : x
  2. Step 2: Convert to fraction form
    77,721.60/116,582.40 = 48,230.40/x
  3. Step 3: Cross multiply
    77,721.60x = 116,582.40 × 48,230.40
  4. Step 4: Simplify right side
    77,721.60x = 5,622,815,784.96
  5. Step 5: Solve for x
    x = 5,622,815,784.96/77,721.60
  6. Step 6: Final answer
    x = 72,345.60

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