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Finding the Fourth Proportional to 172,553.67, 258,830.55 and 47,894.67

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Solution

The fourth proportional to 172,553.67, 258,830.55 and 47,894.67 is: 71,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,553.67 : 258,830.55 = 47,894.67 : x
  2. Step 2: Convert to fraction form
    172,553.67/258,830.55 = 47,894.67/x
  3. Step 3: Cross multiply
    172,553.67x = 258,830.55 × 47,894.67
  4. Step 4: Simplify right side
    172,553.67x = 12,396,603,778.17
  5. Step 5: Solve for x
    x = 12,396,603,778.17/172,553.67
  6. Step 6: Final answer
    x = 71,842.02

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1.5x scale

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.