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Finding the Fourth Proportional to 52,654.40, 78,866.40 and 45,742.40

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Solution

The fourth proportional to 52,654.40, 78,866.40 and 45,742.40 is: 68,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,654.40 : 78,866.40 = 45,742.40 : x
  2. Step 2: Convert to fraction form
    52,654.40/78,866.40 = 45,742.40/x
  3. Step 3: Cross multiply
    52,654.40x = 78,866.40 × 45,742.40
  4. Step 4: Simplify right side
    52,654.40x = 3,607,538,415.36
  5. Step 5: Solve for x
    x = 3,607,538,415.36/52,654.40
  6. Step 6: Final answer
    x = 68,513.52

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