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Finding the Fourth Proportional to 355,185.27, 490,189.44 and 194,064.52

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Solution

The fourth proportional to 355,185.27, 490,189.44 and 194,064.52 is: 267,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,185.27 : 490,189.44 = 194,064.52 : x
  2. Step 2: Convert to fraction form
    355,185.27/490,189.44 = 194,064.52/x
  3. Step 3: Cross multiply
    355,185.27x = 490,189.44 × 194,064.52
  4. Step 4: Simplify right side
    355,185.27x = 95,128,378,382.67
  5. Step 5: Solve for x
    x = 95,128,378,382.67/355,185.27
  6. Step 6: Final answer
    x = 267,827.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.