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Finding the Fourth Proportional to 170,663.61, 255,787.89 and 120,758.11

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Solution

The fourth proportional to 170,663.61, 255,787.89 and 120,758.11 is: 180,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,663.61 : 255,787.89 = 120,758.11 : x
  2. Step 2: Convert to fraction form
    170,663.61/255,787.89 = 120,758.11/x
  3. Step 3: Cross multiply
    170,663.61x = 255,787.89 × 120,758.11
  4. Step 4: Simplify right side
    170,663.61x = 30,888,462,157.29
  5. Step 5: Solve for x
    x = 30,888,462,157.29/170,663.61
  6. Step 6: Final answer
    x = 180,990.32

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