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Finding the Fourth Proportional to 78,810.52, 118,215.80 and 23,406.52

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Solution

The fourth proportional to 78,810.52, 118,215.80 and 23,406.52 is: 35,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,810.52 : 118,215.80 = 23,406.52 : x
  2. Step 2: Convert to fraction form
    78,810.52/118,215.80 = 23,406.52/x
  3. Step 3: Cross multiply
    78,810.52x = 118,215.80 × 23,406.52
  4. Step 4: Simplify right side
    78,810.52x = 2,767,020,487.02
  5. Step 5: Solve for x
    x = 2,767,020,487.02/78,810.52
  6. Step 6: Final answer
    x = 35,109.79

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