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Finding the Fourth Proportional to 93,647.28, 140,393.94 and 43,702.68

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Solution

The fourth proportional to 93,647.28, 140,393.94 and 43,702.68 is: 65,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,647.28 : 140,393.94 = 43,702.68 : x
  2. Step 2: Convert to fraction form
    93,647.28/140,393.94 = 43,702.68/x
  3. Step 3: Cross multiply
    93,647.28x = 140,393.94 × 43,702.68
  4. Step 4: Simplify right side
    93,647.28x = 6,135,591,433.76
  5. Step 5: Solve for x
    x = 6,135,591,433.76/93,647.28
  6. Step 6: Final answer
    x = 65,518.10

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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.