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Finding the Fourth Proportional to 308,562.88, 425,695.04 and 193,774

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Solution

The fourth proportional to 308,562.88, 425,695.04 and 193,774 is: 267,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,562.88 : 425,695.04 = 193,774 : x
  2. Step 2: Convert to fraction form
    308,562.88/425,695.04 = 193,774/x
  3. Step 3: Cross multiply
    308,562.88x = 425,695.04 × 193,774
  4. Step 4: Simplify right side
    308,562.88x = 82,488,630,680.96
  5. Step 5: Solve for x
    x = 82,488,630,680.96/308,562.88
  6. Step 6: Final answer
    x = 267,331.67

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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.