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Finding the Fourth Proportional to 253,517.92, 380,460.02 and 99,666.80

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Solution

The fourth proportional to 253,517.92, 380,460.02 and 99,666.80 is: 149,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,517.92 : 380,460.02 = 99,666.80 : x
  2. Step 2: Convert to fraction form
    253,517.92/380,460.02 = 99,666.80/x
  3. Step 3: Cross multiply
    253,517.92x = 380,460.02 × 99,666.80
  4. Step 4: Simplify right side
    253,517.92x = 37,919,232,721.34
  5. Step 5: Solve for x
    x = 37,919,232,721.34/253,517.92
  6. Step 6: Final answer
    x = 149,572.20

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