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Finding the Fourth Proportional to 447,138.70, 670,708.43 and 110,179.40

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Solution

The fourth proportional to 447,138.70, 670,708.43 and 110,179.40 is: 165,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,138.70 : 670,708.43 = 110,179.40 : x
  2. Step 2: Convert to fraction form
    447,138.70/670,708.43 = 110,179.40/x
  3. Step 3: Cross multiply
    447,138.70x = 670,708.43 × 110,179.40
  4. Step 4: Simplify right side
    447,138.70x = 73,898,248,487.90
  5. Step 5: Solve for x
    x = 73,898,248,487.90/447,138.70
  6. Step 6: Final answer
    x = 165,269.19

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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.