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Finding the Fourth Proportional to 384,779.60, 577,169.40 and 118,621.70

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Solution

The fourth proportional to 384,779.60, 577,169.40 and 118,621.70 is: 177,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779.60 : 577,169.40 = 118,621.70 : x
  2. Step 2: Convert to fraction form
    384,779.60/577,169.40 = 118,621.70/x
  3. Step 3: Cross multiply
    384,779.60x = 577,169.40 × 118,621.70
  4. Step 4: Simplify right side
    384,779.60x = 68,464,815,415.98
  5. Step 5: Solve for x
    x = 68,464,815,415.98/384,779.60
  6. Step 6: Final answer
    x = 177,932.55

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