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Finding the Fourth Proportional to 495,260.80, 742,891.20 and 121,283.80

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Solution

The fourth proportional to 495,260.80, 742,891.20 and 121,283.80 is: 181,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,260.80 : 742,891.20 = 121,283.80 : x
  2. Step 2: Convert to fraction form
    495,260.80/742,891.20 = 121,283.80/x
  3. Step 3: Cross multiply
    495,260.80x = 742,891.20 × 121,283.80
  4. Step 4: Simplify right side
    495,260.80x = 90,100,667,722.56
  5. Step 5: Solve for x
    x = 90,100,667,722.56/495,260.80
  6. Step 6: Final answer
    x = 181,925.70

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