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Finding the Fourth Proportional to 156,502.60, 234,753.90 and 45,694.60

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Solution

The fourth proportional to 156,502.60, 234,753.90 and 45,694.60 is: 68,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,502.60 : 234,753.90 = 45,694.60 : x
  2. Step 2: Convert to fraction form
    156,502.60/234,753.90 = 45,694.60/x
  3. Step 3: Cross multiply
    156,502.60x = 234,753.90 × 45,694.60
  4. Step 4: Simplify right side
    156,502.60x = 10,726,985,558.94
  5. Step 5: Solve for x
    x = 10,726,985,558.94/156,502.60
  6. Step 6: Final answer
    x = 68,541.90

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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.