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Finding the Fourth Proportional to 74,003.74, 111,022 and 34,539.32

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Solution

The fourth proportional to 74,003.74, 111,022 and 34,539.32 is: 51,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,003.74 : 111,022 = 34,539.32 : x
  2. Step 2: Convert to fraction form
    74,003.74/111,022 = 34,539.32/x
  3. Step 3: Cross multiply
    74,003.74x = 111,022 × 34,539.32
  4. Step 4: Simplify right side
    74,003.74x = 3,834,624,385.04
  5. Step 5: Solve for x
    x = 3,834,624,385.04/74,003.74
  6. Step 6: Final answer
    x = 51,816.63

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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.