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Finding the Fourth Proportional to 81,746.72, 122,570.80 and 53,304.80

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Solution

The fourth proportional to 81,746.72, 122,570.80 and 53,304.80 is: 79,925.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,746.72 : 122,570.80 = 53,304.80 : x
  2. Step 2: Convert to fraction form
    81,746.72/122,570.80 = 53,304.80/x
  3. Step 3: Cross multiply
    81,746.72x = 122,570.80 × 53,304.80
  4. Step 4: Simplify right side
    81,746.72x = 6,533,611,979.84
  5. Step 5: Solve for x
    x = 6,533,611,979.84/81,746.72
  6. Step 6: Final answer
    x = 79,925.07

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