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Finding the Fourth Proportional to 98,654.40, 136,134.84 and 55,631.48

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Solution

The fourth proportional to 98,654.40, 136,134.84 and 55,631.48 is: 76,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,654.40 : 136,134.84 = 55,631.48 : x
  2. Step 2: Convert to fraction form
    98,654.40/136,134.84 = 55,631.48/x
  3. Step 3: Cross multiply
    98,654.40x = 136,134.84 × 55,631.48
  4. Step 4: Simplify right side
    98,654.40x = 7,573,382,628.76
  5. Step 5: Solve for x
    x = 7,573,382,628.76/98,654.40
  6. Step 6: Final answer
    x = 76,766.80

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