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Finding the Fourth Proportional to 172,408.06, 258,621.82 and 52,468.93

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Solution

The fourth proportional to 172,408.06, 258,621.82 and 52,468.93 is: 78,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,408.06 : 258,621.82 = 52,468.93 : x
  2. Step 2: Convert to fraction form
    172,408.06/258,621.82 = 52,468.93/x
  3. Step 3: Cross multiply
    172,408.06x = 258,621.82 × 52,468.93
  4. Step 4: Simplify right side
    172,408.06x = 13,569,610,170.05
  5. Step 5: Solve for x
    x = 13,569,610,170.05/172,408.06
  6. Step 6: Final answer
    x = 78,706.36

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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.