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Finding the Fourth Proportional to 318,995.14, 440,223.24 and 183,053.98

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Solution

The fourth proportional to 318,995.14, 440,223.24 and 183,053.98 is: 252,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,995.14 : 440,223.24 = 183,053.98 : x
  2. Step 2: Convert to fraction form
    318,995.14/440,223.24 = 183,053.98/x
  3. Step 3: Cross multiply
    318,995.14x = 440,223.24 × 183,053.98
  4. Step 4: Simplify right side
    318,995.14x = 80,584,616,170.50
  5. Step 5: Solve for x
    x = 80,584,616,170.50/318,995.14
  6. Step 6: Final answer
    x = 252,620.20

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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.