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Finding the Fourth Proportional to 127,339.80, 190,620.90 and 99,346.20

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Solution

The fourth proportional to 127,339.80, 190,620.90 and 99,346.20 is: 148,715.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,339.80 : 190,620.90 = 99,346.20 : x
  2. Step 2: Convert to fraction form
    127,339.80/190,620.90 = 99,346.20/x
  3. Step 3: Cross multiply
    127,339.80x = 190,620.90 × 99,346.20
  4. Step 4: Simplify right side
    127,339.80x = 18,937,462,055.58
  5. Step 5: Solve for x
    x = 18,937,462,055.58/127,339.80
  6. Step 6: Final answer
    x = 148,715.97

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