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Finding the Fourth Proportional to 355,186.53, 490,191.18 and 194,065.77

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Solution

The fourth proportional to 355,186.53, 490,191.18 and 194,065.77 is: 267,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,186.53 : 490,191.18 = 194,065.77 : x
  2. Step 2: Convert to fraction form
    355,186.53/490,191.18 = 194,065.77/x
  3. Step 3: Cross multiply
    355,186.53x = 490,191.18 × 194,065.77
  4. Step 4: Simplify right side
    355,186.53x = 95,129,328,793.91
  5. Step 5: Solve for x
    x = 95,129,328,793.91/355,186.53
  6. Step 6: Final answer
    x = 267,829.21

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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.