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Finding the Fourth Proportional to 173,408.78, 260,113.14 and 48,749.78

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Solution

The fourth proportional to 173,408.78, 260,113.14 and 48,749.78 is: 73,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,408.78 : 260,113.14 = 48,749.78 : x
  2. Step 2: Convert to fraction form
    173,408.78/260,113.14 = 48,749.78/x
  3. Step 3: Cross multiply
    173,408.78x = 260,113.14 × 48,749.78
  4. Step 4: Simplify right side
    173,408.78x = 12,680,458,350.11
  5. Step 5: Solve for x
    x = 12,680,458,350.11/173,408.78
  6. Step 6: Final answer
    x = 73,124.66

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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.