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Finding the Fourth Proportional to 365,707.41, 548,363.87 and 165,918.78

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Solution

The fourth proportional to 365,707.41, 548,363.87 and 165,918.78 is: 248,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,707.41 : 548,363.87 = 165,918.78 : x
  2. Step 2: Convert to fraction form
    365,707.41/548,363.87 = 165,918.78/x
  3. Step 3: Cross multiply
    365,707.41x = 548,363.87 × 165,918.78
  4. Step 4: Simplify right side
    365,707.41x = 90,983,863,476.88
  5. Step 5: Solve for x
    x = 90,983,863,476.88/365,707.41
  6. Step 6: Final answer
    x = 248,788.68

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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.