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Finding the Fourth Proportional to 413,676.45, 620,440.70 and 110,072.25

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Solution

The fourth proportional to 413,676.45, 620,440.70 and 110,072.25 is: 165,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,676.45 : 620,440.70 = 110,072.25 : x
  2. Step 2: Convert to fraction form
    413,676.45/620,440.70 = 110,072.25/x
  3. Step 3: Cross multiply
    413,676.45x = 620,440.70 × 110,072.25
  4. Step 4: Simplify right side
    413,676.45x = 68,293,303,290.21
  5. Step 5: Solve for x
    x = 68,293,303,290.21/413,676.45
  6. Step 6: Final answer
    x = 165,088.69

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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.