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Finding the Fourth Proportional to 127,341.80, 191,012.70 and 99,348.20

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Solution

The fourth proportional to 127,341.80, 191,012.70 and 99,348.20 is: 149,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,341.80 : 191,012.70 = 99,348.20 : x
  2. Step 2: Convert to fraction form
    127,341.80/191,012.70 = 99,348.20/x
  3. Step 3: Cross multiply
    127,341.80x = 191,012.70 × 99,348.20
  4. Step 4: Simplify right side
    127,341.80x = 18,976,767,922.14
  5. Step 5: Solve for x
    x = 18,976,767,922.14/127,341.80
  6. Step 6: Final answer
    x = 149,022.30

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