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Finding the Fourth Proportional to 200,909.90, 301,255.35 and 60,650.30

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Solution

The fourth proportional to 200,909.90, 301,255.35 and 60,650.30 is: 90,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,909.90 : 301,255.35 = 60,650.30 : x
  2. Step 2: Convert to fraction form
    200,909.90/301,255.35 = 60,650.30/x
  3. Step 3: Cross multiply
    200,909.90x = 301,255.35 × 60,650.30
  4. Step 4: Simplify right side
    200,909.90x = 18,271,227,354.11
  5. Step 5: Solve for x
    x = 18,271,227,354.11/200,909.90
  6. Step 6: Final answer
    x = 90,942.39

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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.