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Finding the Fourth Proportional to 203,460.60, 305,190.90 and 92,868.60

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Solution

The fourth proportional to 203,460.60, 305,190.90 and 92,868.60 is: 139,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,460.60 : 305,190.90 = 92,868.60 : x
  2. Step 2: Convert to fraction form
    203,460.60/305,190.90 = 92,868.60/x
  3. Step 3: Cross multiply
    203,460.60x = 305,190.90 × 92,868.60
  4. Step 4: Simplify right side
    203,460.60x = 28,342,651,615.74
  5. Step 5: Solve for x
    x = 28,342,651,615.74/203,460.60
  6. Step 6: Final answer
    x = 139,302.90

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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.