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Finding the Fourth Proportional to 185,742.80, 278,614.20 and 92,430.80

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Solution

The fourth proportional to 185,742.80, 278,614.20 and 92,430.80 is: 138,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,742.80 : 278,614.20 = 92,430.80 : x
  2. Step 2: Convert to fraction form
    185,742.80/278,614.20 = 92,430.80/x
  3. Step 3: Cross multiply
    185,742.80x = 278,614.20 × 92,430.80
  4. Step 4: Simplify right side
    185,742.80x = 25,752,533,397.36
  5. Step 5: Solve for x
    x = 25,752,533,397.36/185,742.80
  6. Step 6: Final answer
    x = 138,646.20

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