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Finding the Fourth Proportional to 172,666.36, 258,990.90 and 48,008.44

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Solution

The fourth proportional to 172,666.36, 258,990.90 and 48,008.44 is: 72,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,666.36 : 258,990.90 = 48,008.44 : x
  2. Step 2: Convert to fraction form
    172,666.36/258,990.90 = 48,008.44/x
  3. Step 3: Cross multiply
    172,666.36x = 258,990.90 × 48,008.44
  4. Step 4: Simplify right side
    172,666.36x = 12,433,749,083.20
  5. Step 5: Solve for x
    x = 12,433,749,083.20/172,666.36
  6. Step 6: Final answer
    x = 72,010.26

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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.