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Finding the Fourth Proportional to 104,909.40, 157,429.71 and 42,579.90

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Solution

The fourth proportional to 104,909.40, 157,429.71 and 42,579.90 is: 63,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,909.40 : 157,429.71 = 42,579.90 : x
  2. Step 2: Convert to fraction form
    104,909.40/157,429.71 = 42,579.90/x
  3. Step 3: Cross multiply
    104,909.40x = 157,429.71 × 42,579.90
  4. Step 4: Simplify right side
    104,909.40x = 6,703,341,308.83
  5. Step 5: Solve for x
    x = 6,703,341,308.83/104,909.40
  6. Step 6: Final answer
    x = 63,896.48

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