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Finding the Fourth Proportional to 124,778.64, 172,196.84 and 68,193.68

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Solution

The fourth proportional to 124,778.64, 172,196.84 and 68,193.68 is: 94,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,778.64 : 172,196.84 = 68,193.68 : x
  2. Step 2: Convert to fraction form
    124,778.64/172,196.84 = 68,193.68/x
  3. Step 3: Cross multiply
    124,778.64x = 172,196.84 × 68,193.68
  4. Step 4: Simplify right side
    124,778.64x = 11,742,736,203.97
  5. Step 5: Solve for x
    x = 11,742,736,203.97/124,778.64
  6. Step 6: Final answer
    x = 94,108.54

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