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Finding the Fourth Proportional to 124,809.21, 172,216.80 and 71,095.28

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Solution

The fourth proportional to 124,809.21, 172,216.80 and 71,095.28 is: 98,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.21 : 172,216.80 = 71,095.28 : x
  2. Step 2: Convert to fraction form
    124,809.21/172,216.80 = 71,095.28/x
  3. Step 3: Cross multiply
    124,809.21x = 172,216.80 × 71,095.28
  4. Step 4: Simplify right side
    124,809.21x = 12,243,800,755.62
  5. Step 5: Solve for x
    x = 12,243,800,755.62/124,809.21
  6. Step 6: Final answer
    x = 98,100.14

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