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Finding the Fourth Proportional to 93,311.78, 140,048.56 and 48,969.86

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Solution

The fourth proportional to 93,311.78, 140,048.56 and 48,969.86 is: 73,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,311.78 : 140,048.56 = 48,969.86 : x
  2. Step 2: Convert to fraction form
    93,311.78/140,048.56 = 48,969.86/x
  3. Step 3: Cross multiply
    93,311.78x = 140,048.56 × 48,969.86
  4. Step 4: Simplify right side
    93,311.78x = 6,858,158,376.40
  5. Step 5: Solve for x
    x = 6,858,158,376.40/93,311.78
  6. Step 6: Final answer
    x = 73,497.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.