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Finding the Fourth Proportional to 171,172.80, 236,240.64 and 105,801.96

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Solution

The fourth proportional to 171,172.80, 236,240.64 and 105,801.96 is: 146,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,172.80 : 236,240.64 = 105,801.96 : x
  2. Step 2: Convert to fraction form
    171,172.80/236,240.64 = 105,801.96/x
  3. Step 3: Cross multiply
    171,172.80x = 236,240.64 × 105,801.96
  4. Step 4: Simplify right side
    171,172.80x = 24,994,722,743.65
  5. Step 5: Solve for x
    x = 24,994,722,743.65/171,172.80
  6. Step 6: Final answer
    x = 146,020.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.