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Finding the Fourth Proportional to 200,898.20, 301,347.30 and 60,638.60

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Solution

The fourth proportional to 200,898.20, 301,347.30 and 60,638.60 is: 90,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,898.20 : 301,347.30 = 60,638.60 : x
  2. Step 2: Convert to fraction form
    200,898.20/301,347.30 = 60,638.60/x
  3. Step 3: Cross multiply
    200,898.20x = 301,347.30 × 60,638.60
  4. Step 4: Simplify right side
    200,898.20x = 18,273,278,385.78
  5. Step 5: Solve for x
    x = 18,273,278,385.78/200,898.20
  6. Step 6: Final answer
    x = 90,957.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.