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Finding the Fourth Proportional to 363,087.44, 500,986.44 and 212,155.28

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Solution

The fourth proportional to 363,087.44, 500,986.44 and 212,155.28 is: 292,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,087.44 : 500,986.44 = 212,155.28 : x
  2. Step 2: Convert to fraction form
    363,087.44/500,986.44 = 212,155.28/x
  3. Step 3: Cross multiply
    363,087.44x = 500,986.44 × 212,155.28
  4. Step 4: Simplify right side
    363,087.44x = 106,286,918,454.40
  5. Step 5: Solve for x
    x = 106,286,918,454.40/363,087.44
  6. Step 6: Final answer
    x = 292,730.91

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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.