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Finding the Fourth Proportional to 78,914.95, 118,387.86 and 28,995.46

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Solution

The fourth proportional to 78,914.95, 118,387.86 and 28,995.46 is: 43,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,914.95 : 118,387.86 = 28,995.46 : x
  2. Step 2: Convert to fraction form
    78,914.95/118,387.86 = 28,995.46/x
  3. Step 3: Cross multiply
    78,914.95x = 118,387.86 × 28,995.46
  4. Step 4: Simplify right side
    78,914.95x = 3,432,710,459.12
  5. Step 5: Solve for x
    x = 3,432,710,459.12/78,914.95
  6. Step 6: Final answer
    x = 43,498.86

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