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Finding the Fourth Proportional to 72,904.80, 109,357.20 and 62,407.20

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Solution

The fourth proportional to 72,904.80, 109,357.20 and 62,407.20 is: 93,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,904.80 : 109,357.20 = 62,407.20 : x
  2. Step 2: Convert to fraction form
    72,904.80/109,357.20 = 62,407.20/x
  3. Step 3: Cross multiply
    72,904.80x = 109,357.20 × 62,407.20
  4. Step 4: Simplify right side
    72,904.80x = 6,824,676,651.84
  5. Step 5: Solve for x
    x = 6,824,676,651.84/72,904.80
  6. Step 6: Final answer
    x = 93,610.80

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