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Finding the Fourth Proportional to 194,158.58, 291,322.71 and 67,889.43

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Solution

The fourth proportional to 194,158.58, 291,322.71 and 67,889.43 is: 101,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,158.58 : 291,322.71 = 67,889.43 : x
  2. Step 2: Convert to fraction form
    194,158.58/291,322.71 = 67,889.43/x
  3. Step 3: Cross multiply
    194,158.58x = 291,322.71 × 67,889.43
  4. Step 4: Simplify right side
    194,158.58x = 19,777,732,727.96
  5. Step 5: Solve for x
    x = 19,777,732,727.96/194,158.58
  6. Step 6: Final answer
    x = 101,863.81

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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.