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Finding the Fourth Proportional to 125,023.76, 187,477.32 and 72,448.28

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Solution

The fourth proportional to 125,023.76, 187,477.32 and 72,448.28 is: 108,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,023.76 : 187,477.32 = 72,448.28 : x
  2. Step 2: Convert to fraction form
    125,023.76/187,477.32 = 72,448.28/x
  3. Step 3: Cross multiply
    125,023.76x = 187,477.32 × 72,448.28
  4. Step 4: Simplify right side
    125,023.76x = 13,582,409,373.01
  5. Step 5: Solve for x
    x = 13,582,409,373.01/125,023.76
  6. Step 6: Final answer
    x = 108,638.62

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