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Finding the Fourth Proportional to 85,234.96, 117,612.80 and 51,694.48

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Solution

The fourth proportional to 85,234.96, 117,612.80 and 51,694.48 is: 71,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,234.96 : 117,612.80 = 51,694.48 : x
  2. Step 2: Convert to fraction form
    85,234.96/117,612.80 = 51,694.48/x
  3. Step 3: Cross multiply
    85,234.96x = 117,612.80 × 51,694.48
  4. Step 4: Simplify right side
    85,234.96x = 6,079,932,537.34
  5. Step 5: Solve for x
    x = 6,079,932,537.34/85,234.96
  6. Step 6: Final answer
    x = 71,331.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.