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Finding the Fourth Proportional to 115,082.96, 172,609.80 and 48,549.52

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Solution

The fourth proportional to 115,082.96, 172,609.80 and 48,549.52 is: 72,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,082.96 : 172,609.80 = 48,549.52 : x
  2. Step 2: Convert to fraction form
    115,082.96/172,609.80 = 48,549.52/x
  3. Step 3: Cross multiply
    115,082.96x = 172,609.80 × 48,549.52
  4. Step 4: Simplify right side
    115,082.96x = 8,380,122,937.30
  5. Step 5: Solve for x
    x = 8,380,122,937.30/115,082.96
  6. Step 6: Final answer
    x = 72,818.10

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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.