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Finding the Fourth Proportional to 108,153.89, 162,249.52 and 48,203.67

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Solution

The fourth proportional to 108,153.89, 162,249.52 and 48,203.67 is: 72,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,153.89 : 162,249.52 = 48,203.67 : x
  2. Step 2: Convert to fraction form
    108,153.89/162,249.52 = 48,203.67/x
  3. Step 3: Cross multiply
    108,153.89x = 162,249.52 × 48,203.67
  4. Step 4: Simplify right side
    108,153.89x = 7,821,022,319.74
  5. Step 5: Solve for x
    x = 7,821,022,319.74/108,153.89
  6. Step 6: Final answer
    x = 72,313.83

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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.