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Finding the Fourth Proportional to 399,245.80, 598,937.88 and 162,717.16

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Solution

The fourth proportional to 399,245.80, 598,937.88 and 162,717.16 is: 244,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,245.80 : 598,937.88 = 162,717.16 : x
  2. Step 2: Convert to fraction form
    399,245.80/598,937.88 = 162,717.16/x
  3. Step 3: Cross multiply
    399,245.80x = 598,937.88 × 162,717.16
  4. Step 4: Simplify right side
    399,245.80x = 97,457,470,850.02
  5. Step 5: Solve for x
    x = 97,457,470,850.02/399,245.80
  6. Step 6: Final answer
    x = 244,103.94

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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.