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Finding the Fourth Proportional to 449,677.46, 674,500.14 and 112,720.91

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Solution

The fourth proportional to 449,677.46, 674,500.14 and 112,720.91 is: 169,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,677.46 : 674,500.14 = 112,720.91 : x
  2. Step 2: Convert to fraction form
    449,677.46/674,500.14 = 112,720.91/x
  3. Step 3: Cross multiply
    449,677.46x = 674,500.14 × 112,720.91
  4. Step 4: Simplify right side
    449,677.46x = 76,030,266,203.43
  5. Step 5: Solve for x
    x = 76,030,266,203.43/449,677.46
  6. Step 6: Final answer
    x = 169,077.33

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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.