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Finding the Fourth Proportional to 85,580.62, 118,065.06 and 57,295.42

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Solution

The fourth proportional to 85,580.62, 118,065.06 and 57,295.42 is: 79,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.62 : 118,065.06 = 57,295.42 : x
  2. Step 2: Convert to fraction form
    85,580.62/118,065.06 = 57,295.42/x
  3. Step 3: Cross multiply
    85,580.62x = 118,065.06 × 57,295.42
  4. Step 4: Simplify right side
    85,580.62x = 6,764,586,904.86
  5. Step 5: Solve for x
    x = 6,764,586,904.86/85,580.62
  6. Step 6: Final answer
    x = 79,043.45

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