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Finding the Fourth Proportional to 103,635.25, 155,526.72 and 44,487.85

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Solution

The fourth proportional to 103,635.25, 155,526.72 and 44,487.85 is: 66,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.25 : 155,526.72 = 44,487.85 : x
  2. Step 2: Convert to fraction form
    103,635.25/155,526.72 = 44,487.85/x
  3. Step 3: Cross multiply
    103,635.25x = 155,526.72 × 44,487.85
  4. Step 4: Simplify right side
    103,635.25x = 6,919,049,390.35
  5. Step 5: Solve for x
    x = 6,919,049,390.35/103,635.25
  6. Step 6: Final answer
    x = 66,763.47

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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.