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Finding the Fourth Proportional to 74,455.60, 111,683.40 and 42,962.80

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Solution

The fourth proportional to 74,455.60, 111,683.40 and 42,962.80 is: 64,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,455.60 : 111,683.40 = 42,962.80 : x
  2. Step 2: Convert to fraction form
    74,455.60/111,683.40 = 42,962.80/x
  3. Step 3: Cross multiply
    74,455.60x = 111,683.40 × 42,962.80
  4. Step 4: Simplify right side
    74,455.60x = 4,798,231,577.52
  5. Step 5: Solve for x
    x = 4,798,231,577.52/74,455.60
  6. Step 6: Final answer
    x = 64,444.20

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