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Finding the Fourth Proportional to 75,118.53, 103,686.63 and 43,308.60

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Solution

The fourth proportional to 75,118.53, 103,686.63 and 43,308.60 is: 59,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,118.53 : 103,686.63 = 43,308.60 : x
  2. Step 2: Convert to fraction form
    75,118.53/103,686.63 = 43,308.60/x
  3. Step 3: Cross multiply
    75,118.53x = 103,686.63 × 43,308.60
  4. Step 4: Simplify right side
    75,118.53x = 4,490,522,784.02
  5. Step 5: Solve for x
    x = 4,490,522,784.02/75,118.53
  6. Step 6: Final answer
    x = 59,779.16

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