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Finding the Fourth Proportional to 103,805.67, 155,730.39 and 33,679.56

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Solution

The fourth proportional to 103,805.67, 155,730.39 and 33,679.56 is: 50,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.67 : 155,730.39 = 33,679.56 : x
  2. Step 2: Convert to fraction form
    103,805.67/155,730.39 = 33,679.56/x
  3. Step 3: Cross multiply
    103,805.67x = 155,730.39 × 33,679.56
  4. Step 4: Simplify right side
    103,805.67x = 5,244,931,013.83
  5. Step 5: Solve for x
    x = 5,244,931,013.83/103,805.67
  6. Step 6: Final answer
    x = 50,526.44

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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.