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Finding the Fourth Proportional to 81,393,602.90, 122,090,404.35 and 55,565,570.30

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Solution

The fourth proportional to 81,393,602.90, 122,090,404.35 and 55,565,570.30 is: 83,348,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,393,602.90 : 122,090,404.35 = 55,565,570.30 : x
  2. Step 2: Convert to fraction form
    81,393,602.90/122,090,404.35 = 55,565,570.30/x
  3. Step 3: Cross multiply
    81,393,602.90x = 122,090,404.35 × 55,565,570.30
  4. Step 4: Simplify right side
    81,393,602.90x = 6,784,022,945,865,350
  5. Step 5: Solve for x
    x = 6,784,022,945,865,350/81,393,602.90
  6. Step 6: Final answer
    x = 83,348,355.45

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