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Finding the Fourth Proportional to 354,242.11, 530,771.46 and 248,872.45

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Solution

The fourth proportional to 354,242.11, 530,771.46 and 248,872.45 is: 372,892.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,242.11 : 530,771.46 = 248,872.45 : x
  2. Step 2: Convert to fraction form
    354,242.11/530,771.46 = 248,872.45/x
  3. Step 3: Cross multiply
    354,242.11x = 530,771.46 × 248,872.45
  4. Step 4: Simplify right side
    354,242.11x = 132,094,393,640.28
  5. Step 5: Solve for x
    x = 132,094,393,640.28/354,242.11
  6. Step 6: Final answer
    x = 372,892.97

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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.