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Finding the Fourth Proportional to 353,861.11, 488,342.15 and 200,913.53

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Solution

The fourth proportional to 353,861.11, 488,342.15 and 200,913.53 is: 277,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,861.11 : 488,342.15 = 200,913.53 : x
  2. Step 2: Convert to fraction form
    353,861.11/488,342.15 = 200,913.53/x
  3. Step 3: Cross multiply
    353,861.11x = 488,342.15 × 200,913.53
  4. Step 4: Simplify right side
    353,861.11x = 98,114,545,204.29
  5. Step 5: Solve for x
    x = 98,114,545,204.29/353,861.11
  6. Step 6: Final answer
    x = 277,268.52

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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.