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Finding the Fourth Proportional to 102,070.48, 140,861.95 and 56,753.12

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Solution

The fourth proportional to 102,070.48, 140,861.95 and 56,753.12 is: 78,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,070.48 : 140,861.95 = 56,753.12 : x
  2. Step 2: Convert to fraction form
    102,070.48/140,861.95 = 56,753.12/x
  3. Step 3: Cross multiply
    102,070.48x = 140,861.95 × 56,753.12
  4. Step 4: Simplify right side
    102,070.48x = 7,994,355,151.78
  5. Step 5: Solve for x
    x = 7,994,355,151.78/102,070.48
  6. Step 6: Final answer
    x = 78,321.91

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