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Finding the Fourth Proportional to 98,551.25, 136,000.85 and 56,109.77

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Solution

The fourth proportional to 98,551.25, 136,000.85 and 56,109.77 is: 77,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,551.25 : 136,000.85 = 56,109.77 : x
  2. Step 2: Convert to fraction form
    98,551.25/136,000.85 = 56,109.77/x
  3. Step 3: Cross multiply
    98,551.25x = 136,000.85 × 56,109.77
  4. Step 4: Simplify right side
    98,551.25x = 7,630,976,413.30
  5. Step 5: Solve for x
    x = 7,630,976,413.30/98,551.25
  6. Step 6: Final answer
    x = 77,431.55

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