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Finding the Fourth Proportional to 128,459.76, 192,440.29 and 94,664.45

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Solution

The fourth proportional to 128,459.76, 192,440.29 and 94,664.45 is: 141,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,459.76 : 192,440.29 = 94,664.45 : x
  2. Step 2: Convert to fraction form
    128,459.76/192,440.29 = 94,664.45/x
  3. Step 3: Cross multiply
    128,459.76x = 192,440.29 × 94,664.45
  4. Step 4: Simplify right side
    128,459.76x = 18,217,254,210.69
  5. Step 5: Solve for x
    x = 18,217,254,210.69/128,459.76
  6. Step 6: Final answer
    x = 141,812.92

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