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Finding the Fourth Proportional to 363,135.58, 501,091.92 and 210,143.38

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Solution

The fourth proportional to 363,135.58, 501,091.92 and 210,143.38 is: 289,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,135.58 : 501,091.92 = 210,143.38 : x
  2. Step 2: Convert to fraction form
    363,135.58/501,091.92 = 210,143.38/x
  3. Step 3: Cross multiply
    363,135.58x = 501,091.92 × 210,143.38
  4. Step 4: Simplify right side
    363,135.58x = 105,301,149,759.49
  5. Step 5: Solve for x
    x = 105,301,149,759.49/363,135.58
  6. Step 6: Final answer
    x = 289,977.51

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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.