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Finding the Fourth Proportional to 74,779.45, 103,195.72 and 42,954.50

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Solution

The fourth proportional to 74,779.45, 103,195.72 and 42,954.50 is: 59,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,779.45 : 103,195.72 = 42,954.50 : x
  2. Step 2: Convert to fraction form
    74,779.45/103,195.72 = 42,954.50/x
  3. Step 3: Cross multiply
    74,779.45x = 103,195.72 × 42,954.50
  4. Step 4: Simplify right side
    74,779.45x = 4,432,720,866.42
  5. Step 5: Solve for x
    x = 4,432,720,866.42/74,779.45
  6. Step 6: Final answer
    x = 59,277.26

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