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Finding the Fourth Proportional to 363,961.50, 502,123.66 and 243,181.68

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Solution

The fourth proportional to 363,961.50, 502,123.66 and 243,181.68 is: 335,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,961.50 : 502,123.66 = 243,181.68 : x
  2. Step 2: Convert to fraction form
    363,961.50/502,123.66 = 243,181.68/x
  3. Step 3: Cross multiply
    363,961.50x = 502,123.66 × 243,181.68
  4. Step 4: Simplify right side
    363,961.50x = 122,107,275,206.55
  5. Step 5: Solve for x
    x = 122,107,275,206.55/363,961.50
  6. Step 6: Final answer
    x = 335,495.03

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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.