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Finding the Fourth Proportional to 293,616.40, 440,424.60 and 167,645.20

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Solution

The fourth proportional to 293,616.40, 440,424.60 and 167,645.20 is: 251,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,616.40 : 440,424.60 = 167,645.20 : x
  2. Step 2: Convert to fraction form
    293,616.40/440,424.60 = 167,645.20/x
  3. Step 3: Cross multiply
    293,616.40x = 440,424.60 × 167,645.20
  4. Step 4: Simplify right side
    293,616.40x = 73,835,070,151.92
  5. Step 5: Solve for x
    x = 73,835,070,151.92/293,616.40
  6. Step 6: Final answer
    x = 251,467.80

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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.