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Finding the Fourth Proportional to 449,687.25, 674,514.75 and 112,730.67

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Solution

The fourth proportional to 449,687.25, 674,514.75 and 112,730.67 is: 169,091.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,687.25 : 674,514.75 = 112,730.67 : x
  2. Step 2: Convert to fraction form
    449,687.25/674,514.75 = 112,730.67/x
  3. Step 3: Cross multiply
    449,687.25x = 674,514.75 × 112,730.67
  4. Step 4: Simplify right side
    449,687.25x = 76,038,499,692.38
  5. Step 5: Solve for x
    x = 76,038,499,692.38/449,687.25
  6. Step 6: Final answer
    x = 169,091.96

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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.