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Finding the Fourth Proportional to 363,100.30, 501,043.29 and 210,107.98

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Solution

The fourth proportional to 363,100.30, 501,043.29 and 210,107.98 is: 289,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,100.30 : 501,043.29 = 210,107.98 : x
  2. Step 2: Convert to fraction form
    363,100.30/501,043.29 = 210,107.98/x
  3. Step 3: Cross multiply
    363,100.30x = 501,043.29 × 210,107.98
  4. Step 4: Simplify right side
    363,100.30x = 105,273,193,554.45
  5. Step 5: Solve for x
    x = 105,273,193,554.45/363,100.30
  6. Step 6: Final answer
    x = 289,928.69

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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.