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Finding the Fourth Proportional to 66,751.89, 100,162.35 and 29,338.23

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Solution

The fourth proportional to 66,751.89, 100,162.35 and 29,338.23 is: 44,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.89 : 100,162.35 = 29,338.23 : x
  2. Step 2: Convert to fraction form
    66,751.89/100,162.35 = 29,338.23/x
  3. Step 3: Cross multiply
    66,751.89x = 100,162.35 × 29,338.23
  4. Step 4: Simplify right side
    66,751.89x = 2,938,586,061.64
  5. Step 5: Solve for x
    x = 2,938,586,061.64/66,751.89
  6. Step 6: Final answer
    x = 44,022.51

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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.