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Finding the Fourth Proportional to 93,502.64, 140,305 and 54,136.64

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Solution

The fourth proportional to 93,502.64, 140,305 and 54,136.64 is: 81,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,502.64 : 140,305 = 54,136.64 : x
  2. Step 2: Convert to fraction form
    93,502.64/140,305 = 54,136.64/x
  3. Step 3: Cross multiply
    93,502.64x = 140,305 × 54,136.64
  4. Step 4: Simplify right side
    93,502.64x = 7,595,641,275.20
  5. Step 5: Solve for x
    x = 7,595,641,275.20/93,502.64
  6. Step 6: Final answer
    x = 81,234.51

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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.