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Finding the Fourth Proportional to 115,173.08, 172,685.66 and 48,595

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Solution

The fourth proportional to 115,173.08, 172,685.66 and 48,595 is: 72,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,173.08 : 172,685.66 = 48,595 : x
  2. Step 2: Convert to fraction form
    115,173.08/172,685.66 = 48,595/x
  3. Step 3: Cross multiply
    115,173.08x = 172,685.66 × 48,595
  4. Step 4: Simplify right side
    115,173.08x = 8,391,659,647.70
  5. Step 5: Solve for x
    x = 8,391,659,647.70/115,173.08
  6. Step 6: Final answer
    x = 72,861.29

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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.