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Finding the Fourth Proportional to 194,469.20, 291,768.60 and 94,691.60

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Solution

The fourth proportional to 194,469.20, 291,768.60 and 94,691.60 is: 142,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,469.20 : 291,768.60 = 94,691.60 : x
  2. Step 2: Convert to fraction form
    194,469.20/291,768.60 = 94,691.60/x
  3. Step 3: Cross multiply
    194,469.20x = 291,768.60 × 94,691.60
  4. Step 4: Simplify right side
    194,469.20x = 27,628,035,563.76
  5. Step 5: Solve for x
    x = 27,628,035,563.76/194,469.20
  6. Step 6: Final answer
    x = 142,068.95

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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.