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Finding the Fourth Proportional to 101,640.93, 152,461.73 and 25,739.43

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Solution

The fourth proportional to 101,640.93, 152,461.73 and 25,739.43 is: 38,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,640.93 : 152,461.73 = 25,739.43 : x
  2. Step 2: Convert to fraction form
    101,640.93/152,461.73 = 25,739.43/x
  3. Step 3: Cross multiply
    101,640.93x = 152,461.73 × 25,739.43
  4. Step 4: Simplify right side
    101,640.93x = 3,924,277,136.01
  5. Step 5: Solve for x
    x = 3,924,277,136.01/101,640.93
  6. Step 6: Final answer
    x = 38,609.22

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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.