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Finding the Fourth Proportional to 363,017.87, 500,891.24 and 212,085.71

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Solution

The fourth proportional to 363,017.87, 500,891.24 and 212,085.71 is: 292,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,017.87 : 500,891.24 = 212,085.71 : x
  2. Step 2: Convert to fraction form
    363,017.87/500,891.24 = 212,085.71/x
  3. Step 3: Cross multiply
    363,017.87x = 500,891.24 × 212,085.71
  4. Step 4: Simplify right side
    363,017.87x = 106,231,871,763.72
  5. Step 5: Solve for x
    x = 106,231,871,763.72/363,017.87
  6. Step 6: Final answer
    x = 292,635.38

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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.