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Finding the Fourth Proportional to 112,782.69, 155,638.41 and 61,795.02

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Solution

The fourth proportional to 112,782.69, 155,638.41 and 61,795.02 is: 85,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,782.69 : 155,638.41 = 61,795.02 : x
  2. Step 2: Convert to fraction form
    112,782.69/155,638.41 = 61,795.02/x
  3. Step 3: Cross multiply
    112,782.69x = 155,638.41 × 61,795.02
  4. Step 4: Simplify right side
    112,782.69x = 9,617,678,658.72
  5. Step 5: Solve for x
    x = 9,617,678,658.72/112,782.69
  6. Step 6: Final answer
    x = 85,276.19

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