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Finding the Fourth Proportional to 449,790.72, 674,686.08 and 117,363.84

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Solution

The fourth proportional to 449,790.72, 674,686.08 and 117,363.84 is: 176,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,790.72 : 674,686.08 = 117,363.84 : x
  2. Step 2: Convert to fraction form
    449,790.72/674,686.08 = 117,363.84/x
  3. Step 3: Cross multiply
    449,790.72x = 674,686.08 × 117,363.84
  4. Step 4: Simplify right side
    449,790.72x = 79,183,749,143.35
  5. Step 5: Solve for x
    x = 79,183,749,143.35/449,790.72
  6. Step 6: Final answer
    x = 176,045.76

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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.