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Finding the Fourth Proportional to 119,331.94, 164,682.31 and 65,621.04

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Solution

The fourth proportional to 119,331.94, 164,682.31 and 65,621.04 is: 90,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,331.94 : 164,682.31 = 65,621.04 : x
  2. Step 2: Convert to fraction form
    119,331.94/164,682.31 = 65,621.04/x
  3. Step 3: Cross multiply
    119,331.94x = 164,682.31 × 65,621.04
  4. Step 4: Simplify right side
    119,331.94x = 10,806,624,451.80
  5. Step 5: Solve for x
    x = 10,806,624,451.80/119,331.94
  6. Step 6: Final answer
    x = 90,559.36

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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.