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Finding the Fourth Proportional to 106,609.50, 159,915.06 and 36,489.42

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Solution

The fourth proportional to 106,609.50, 159,915.06 and 36,489.42 is: 54,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,609.50 : 159,915.06 = 36,489.42 : x
  2. Step 2: Convert to fraction form
    106,609.50/159,915.06 = 36,489.42/x
  3. Step 3: Cross multiply
    106,609.50x = 159,915.06 × 36,489.42
  4. Step 4: Simplify right side
    106,609.50x = 5,835,207,788.67
  5. Step 5: Solve for x
    x = 5,835,207,788.67/106,609.50
  6. Step 6: Final answer
    x = 54,734.41

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1.5x scale

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.