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Finding the Fourth Proportional to 70,644.96, 105,916.41 and 35,609.22

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Solution

The fourth proportional to 70,644.96, 105,916.41 and 35,609.22 is: 53,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,644.96 : 105,916.41 = 35,609.22 : x
  2. Step 2: Convert to fraction form
    70,644.96/105,916.41 = 35,609.22/x
  3. Step 3: Cross multiply
    70,644.96x = 105,916.41 × 35,609.22
  4. Step 4: Simplify right side
    70,644.96x = 3,771,600,745.30
  5. Step 5: Solve for x
    x = 3,771,600,745.30/70,644.96
  6. Step 6: Final answer
    x = 53,388.11

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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.