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Finding the Fourth Proportional to 147,642.40, 221,420.40 and 52,861.60

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Solution

The fourth proportional to 147,642.40, 221,420.40 and 52,861.60 is: 79,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,642.40 : 221,420.40 = 52,861.60 : x
  2. Step 2: Convert to fraction form
    147,642.40/221,420.40 = 52,861.60/x
  3. Step 3: Cross multiply
    147,642.40x = 221,420.40 × 52,861.60
  4. Step 4: Simplify right side
    147,642.40x = 11,704,636,616.64
  5. Step 5: Solve for x
    x = 11,704,636,616.64/147,642.40
  6. Step 6: Final answer
    x = 79,276.93

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