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Finding the Fourth Proportional to 73,591, 101,555.94 and 40,057

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Solution

The fourth proportional to 73,591, 101,555.94 and 40,057 is: 55,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,591 : 101,555.94 = 40,057 : x
  2. Step 2: Convert to fraction form
    73,591/101,555.94 = 40,057/x
  3. Step 3: Cross multiply
    73,591x = 101,555.94 × 40,057
  4. Step 4: Simplify right side
    73,591x = 4,068,026,288.58
  5. Step 5: Solve for x
    x = 4,068,026,288.58/73,591
  6. Step 6: Final answer
    x = 55,278.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.