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Finding the Fourth Proportional to 72,356.68, 108,519.18 and 27,967.88

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Solution

The fourth proportional to 72,356.68, 108,519.18 and 27,967.88 is: 41,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,356.68 : 108,519.18 = 27,967.88 : x
  2. Step 2: Convert to fraction form
    72,356.68/108,519.18 = 27,967.88/x
  3. Step 3: Cross multiply
    72,356.68x = 108,519.18 × 27,967.88
  4. Step 4: Simplify right side
    72,356.68x = 3,035,051,403.94
  5. Step 5: Solve for x
    x = 3,035,051,403.94/72,356.68
  6. Step 6: Final answer
    x = 41,945.70

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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.