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Finding the Fourth Proportional to 186,429.60, 279,622.80 and 53,330.40

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Solution

The fourth proportional to 186,429.60, 279,622.80 and 53,330.40 is: 79,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,429.60 : 279,622.80 = 53,330.40 : x
  2. Step 2: Convert to fraction form
    186,429.60/279,622.80 = 53,330.40/x
  3. Step 3: Cross multiply
    186,429.60x = 279,622.80 × 53,330.40
  4. Step 4: Simplify right side
    186,429.60x = 14,912,395,773.12
  5. Step 5: Solve for x
    x = 14,912,395,773.12/186,429.60
  6. Step 6: Final answer
    x = 79,989.42

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