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Finding the Fourth Proportional to 201,907.70, 302,861.55 and 192,722.30

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Solution

The fourth proportional to 201,907.70, 302,861.55 and 192,722.30 is: 289,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,907.70 : 302,861.55 = 192,722.30 : x
  2. Step 2: Convert to fraction form
    201,907.70/302,861.55 = 192,722.30/x
  3. Step 3: Cross multiply
    201,907.70x = 302,861.55 × 192,722.30
  4. Step 4: Simplify right side
    201,907.70x = 58,368,174,497.57
  5. Step 5: Solve for x
    x = 58,368,174,497.57/201,907.70
  6. Step 6: Final answer
    x = 289,083.45

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1.5x scale

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.