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Finding the Fourth Proportional to 106,381.68, 159,580.08 and 43,171.44

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Solution

The fourth proportional to 106,381.68, 159,580.08 and 43,171.44 is: 64,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,381.68 : 159,580.08 = 43,171.44 : x
  2. Step 2: Convert to fraction form
    106,381.68/159,580.08 = 43,171.44/x
  3. Step 3: Cross multiply
    106,381.68x = 159,580.08 × 43,171.44
  4. Step 4: Simplify right side
    106,381.68x = 6,889,301,848.92
  5. Step 5: Solve for x
    x = 6,889,301,848.92/106,381.68
  6. Step 6: Final answer
    x = 64,760.23

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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.