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Finding the Fourth Proportional to 103,652.90, 155,364.15 and 56,939.30

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Solution

The fourth proportional to 103,652.90, 155,364.15 and 56,939.30 is: 85,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,652.90 : 155,364.15 = 56,939.30 : x
  2. Step 2: Convert to fraction form
    103,652.90/155,364.15 = 56,939.30/x
  3. Step 3: Cross multiply
    103,652.90x = 155,364.15 × 56,939.30
  4. Step 4: Simplify right side
    103,652.90x = 8,846,325,946.10
  5. Step 5: Solve for x
    x = 8,846,325,946.10/103,652.90
  6. Step 6: Final answer
    x = 85,345.67

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