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Finding the Fourth Proportional to 123,593.13, 170,253.47 and 105,384.59

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Solution

The fourth proportional to 123,593.13, 170,253.47 and 105,384.59 is: 145,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,593.13 : 170,253.47 = 105,384.59 : x
  2. Step 2: Convert to fraction form
    123,593.13/170,253.47 = 105,384.59/x
  3. Step 3: Cross multiply
    123,593.13x = 170,253.47 × 105,384.59
  4. Step 4: Simplify right side
    123,593.13x = 17,942,092,125.70
  5. Step 5: Solve for x
    x = 17,942,092,125.70/123,593.13
  6. Step 6: Final answer
    x = 145,170.63

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