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Finding the Fourth Proportional to 103,269.78, 154,920.88 and 44,105.76

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Solution

The fourth proportional to 103,269.78, 154,920.88 and 44,105.76 is: 66,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,269.78 : 154,920.88 = 44,105.76 : x
  2. Step 2: Convert to fraction form
    103,269.78/154,920.88 = 44,105.76/x
  3. Step 3: Cross multiply
    103,269.78x = 154,920.88 × 44,105.76
  4. Step 4: Simplify right side
    103,269.78x = 6,832,903,152.27
  5. Step 5: Solve for x
    x = 6,832,903,152.27/103,269.78
  6. Step 6: Final answer
    x = 66,165.56

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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.