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Finding the Fourth Proportional to 120,563.54, 166,281.71 and 77,547.98

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Solution

The fourth proportional to 120,563.54, 166,281.71 and 77,547.98 is: 106,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,563.54 : 166,281.71 = 77,547.98 : x
  2. Step 2: Convert to fraction form
    120,563.54/166,281.71 = 77,547.98/x
  3. Step 3: Cross multiply
    120,563.54x = 166,281.71 × 77,547.98
  4. Step 4: Simplify right side
    120,563.54x = 12,894,811,185.62
  5. Step 5: Solve for x
    x = 12,894,811,185.62/120,563.54
  6. Step 6: Final answer
    x = 106,954.48

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