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Finding the Fourth Proportional to 293,469.80, 440,204.70 and 143,733.20

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Solution

The fourth proportional to 293,469.80, 440,204.70 and 143,733.20 is: 215,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,469.80 : 440,204.70 = 143,733.20 : x
  2. Step 2: Convert to fraction form
    293,469.80/440,204.70 = 143,733.20/x
  3. Step 3: Cross multiply
    293,469.80x = 440,204.70 × 143,733.20
  4. Step 4: Simplify right side
    293,469.80x = 63,272,030,186.04
  5. Step 5: Solve for x
    x = 63,272,030,186.04/293,469.80
  6. Step 6: Final answer
    x = 215,599.80

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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.