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Finding the Fourth Proportional to 55,555.92, 76,587.48 and 39,612.72

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Solution

The fourth proportional to 55,555.92, 76,587.48 and 39,612.72 is: 54,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.92 : 76,587.48 = 39,612.72 : x
  2. Step 2: Convert to fraction form
    55,555.92/76,587.48 = 39,612.72/x
  3. Step 3: Cross multiply
    55,555.92x = 76,587.48 × 39,612.72
  4. Step 4: Simplify right side
    55,555.92x = 3,033,838,400.75
  5. Step 5: Solve for x
    x = 3,033,838,400.75/55,555.92
  6. Step 6: Final answer
    x = 54,608.73

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