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Finding the Fourth Proportional to 379,186.85, 568,885.58 and 165,916.55

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Solution

The fourth proportional to 379,186.85, 568,885.58 and 165,916.55 is: 248,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,186.85 : 568,885.58 = 165,916.55 : x
  2. Step 2: Convert to fraction form
    379,186.85/568,885.58 = 165,916.55/x
  3. Step 3: Cross multiply
    379,186.85x = 568,885.58 × 165,916.55
  4. Step 4: Simplify right side
    379,186.85x = 94,387,533,993.17
  5. Step 5: Solve for x
    x = 94,387,533,993.17/379,186.85
  6. Step 6: Final answer
    x = 248,920.90

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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.