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Finding the Fourth Proportional to 72,670.16, 108,771.96 and 48,933.92

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Solution

The fourth proportional to 72,670.16, 108,771.96 and 48,933.92 is: 73,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,670.16 : 108,771.96 = 48,933.92 : x
  2. Step 2: Convert to fraction form
    72,670.16/108,771.96 = 48,933.92/x
  3. Step 3: Cross multiply
    72,670.16x = 108,771.96 × 48,933.92
  4. Step 4: Simplify right side
    72,670.16x = 5,322,638,388.88
  5. Step 5: Solve for x
    x = 5,322,638,388.88/72,670.16
  6. Step 6: Final answer
    x = 73,243.80

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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.