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Finding the Fourth Proportional to 115,057.70, 172,516.08 and 44,855

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Solution

The fourth proportional to 115,057.70, 172,516.08 and 44,855 is: 67,255.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,057.70 : 172,516.08 = 44,855 : x
  2. Step 2: Convert to fraction form
    115,057.70/172,516.08 = 44,855/x
  3. Step 3: Cross multiply
    115,057.70x = 172,516.08 × 44,855
  4. Step 4: Simplify right side
    115,057.70x = 7,738,208,768.40
  5. Step 5: Solve for x
    x = 7,738,208,768.40/115,057.70
  6. Step 6: Final answer
    x = 67,255.03

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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.