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Finding the Fourth Proportional to 202,060.80, 302,572.80 and 192,729.60

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Solution

The fourth proportional to 202,060.80, 302,572.80 and 192,729.60 is: 288,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,060.80 : 302,572.80 = 192,729.60 : x
  2. Step 2: Convert to fraction form
    202,060.80/302,572.80 = 192,729.60/x
  3. Step 3: Cross multiply
    202,060.80x = 302,572.80 × 192,729.60
  4. Step 4: Simplify right side
    202,060.80x = 58,314,734,714.88
  5. Step 5: Solve for x
    x = 58,314,734,714.88/202,060.80
  6. Step 6: Final answer
    x = 288,599.94

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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.