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Finding the Fourth Proportional to 69,083.46, 103,627.41 and 19,164.06

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Solution

The fourth proportional to 69,083.46, 103,627.41 and 19,164.06 is: 28,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,083.46 : 103,627.41 = 19,164.06 : x
  2. Step 2: Convert to fraction form
    69,083.46/103,627.41 = 19,164.06/x
  3. Step 3: Cross multiply
    69,083.46x = 103,627.41 × 19,164.06
  4. Step 4: Simplify right side
    69,083.46x = 1,985,921,902.88
  5. Step 5: Solve for x
    x = 1,985,921,902.88/69,083.46
  6. Step 6: Final answer
    x = 28,746.71

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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.