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Finding the Fourth Proportional to 207,906.48, 311,840.28 and 58,160.16

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Solution

The fourth proportional to 207,906.48, 311,840.28 and 58,160.16 is: 87,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,906.48 : 311,840.28 = 58,160.16 : x
  2. Step 2: Convert to fraction form
    207,906.48/311,840.28 = 58,160.16/x
  3. Step 3: Cross multiply
    207,906.48x = 311,840.28 × 58,160.16
  4. Step 4: Simplify right side
    207,906.48x = 18,136,680,579.24
  5. Step 5: Solve for x
    x = 18,136,680,579.24/207,906.48
  6. Step 6: Final answer
    x = 87,234.80

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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.