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Finding the Fourth Proportional to 72,652.29, 108,977.73 and 43,048.81

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Solution

The fourth proportional to 72,652.29, 108,977.73 and 43,048.81 is: 64,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,652.29 : 108,977.73 = 43,048.81 : x
  2. Step 2: Convert to fraction form
    72,652.29/108,977.73 = 43,048.81/x
  3. Step 3: Cross multiply
    72,652.29x = 108,977.73 × 43,048.81
  4. Step 4: Simplify right side
    72,652.29x = 4,691,361,593.00
  5. Step 5: Solve for x
    x = 4,691,361,593.00/72,652.29
  6. Step 6: Final answer
    x = 64,572.80

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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.