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Finding the Fourth Proportional to 201,049.40, 301,136.70 and 122,025.80

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Solution

The fourth proportional to 201,049.40, 301,136.70 and 122,025.80 is: 182,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,049.40 : 301,136.70 = 122,025.80 : x
  2. Step 2: Convert to fraction form
    201,049.40/301,136.70 = 122,025.80/x
  3. Step 3: Cross multiply
    201,049.40x = 301,136.70 × 122,025.80
  4. Step 4: Simplify right side
    201,049.40x = 36,746,446,726.86
  5. Step 5: Solve for x
    x = 36,746,446,726.86/201,049.40
  6. Step 6: Final answer
    x = 182,773.22

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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.