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Finding the Fourth Proportional to 104,909.85, 157,411.28 and 54,978.08

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Solution

The fourth proportional to 104,909.85, 157,411.28 and 54,978.08 is: 82,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,909.85 : 157,411.28 = 54,978.08 : x
  2. Step 2: Convert to fraction form
    104,909.85/157,411.28 = 54,978.08/x
  3. Step 3: Cross multiply
    104,909.85x = 157,411.28 × 54,978.08
  4. Step 4: Simplify right side
    104,909.85x = 8,654,169,295.13
  5. Step 5: Solve for x
    x = 8,654,169,295.13/104,909.85
  6. Step 6: Final answer
    x = 82,491.48

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