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Finding the Fourth Proportional to 425,863.98, 638,795.97 and 110,320.92

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Solution

The fourth proportional to 425,863.98, 638,795.97 and 110,320.92 is: 165,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,863.98 : 638,795.97 = 110,320.92 : x
  2. Step 2: Convert to fraction form
    425,863.98/638,795.97 = 110,320.92/x
  3. Step 3: Cross multiply
    425,863.98x = 638,795.97 × 110,320.92
  4. Step 4: Simplify right side
    425,863.98x = 70,472,559,102.69
  5. Step 5: Solve for x
    x = 70,472,559,102.69/425,863.98
  6. Step 6: Final answer
    x = 165,481.38

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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.