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Finding the Fourth Proportional to 72,918.52, 109,368.55 and 28,576.41

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Solution

The fourth proportional to 72,918.52, 109,368.55 and 28,576.41 is: 42,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,918.52 : 109,368.55 = 28,576.41 : x
  2. Step 2: Convert to fraction form
    72,918.52/109,368.55 = 28,576.41/x
  3. Step 3: Cross multiply
    72,918.52x = 109,368.55 × 28,576.41
  4. Step 4: Simplify right side
    72,918.52x = 3,125,360,525.91
  5. Step 5: Solve for x
    x = 3,125,360,525.91/72,918.52
  6. Step 6: Final answer
    x = 42,861.00

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