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Finding the Fourth Proportional to 201,705.70, 302,558.55 and 192,028.90

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Solution

The fourth proportional to 201,705.70, 302,558.55 and 192,028.90 is: 288,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,705.70 : 302,558.55 = 192,028.90 : x
  2. Step 2: Convert to fraction form
    201,705.70/302,558.55 = 192,028.90/x
  3. Step 3: Cross multiply
    201,705.70x = 302,558.55 × 192,028.90
  4. Step 4: Simplify right side
    201,705.70x = 58,099,985,542.10
  5. Step 5: Solve for x
    x = 58,099,985,542.10/201,705.70
  6. Step 6: Final answer
    x = 288,043.35

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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.