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Finding the Fourth Proportional to 172,668.36, 258,993.90 and 48,010.44

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Solution

The fourth proportional to 172,668.36, 258,993.90 and 48,010.44 is: 72,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,668.36 : 258,993.90 = 48,010.44 : x
  2. Step 2: Convert to fraction form
    172,668.36/258,993.90 = 48,010.44/x
  3. Step 3: Cross multiply
    172,668.36x = 258,993.90 × 48,010.44
  4. Step 4: Simplify right side
    172,668.36x = 12,434,411,096.32
  5. Step 5: Solve for x
    x = 12,434,411,096.32/172,668.36
  6. Step 6: Final answer
    x = 72,013.26

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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.