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Finding the Fourth Proportional to 101,505.63, 152,083.44 and 67,290.42

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Solution

The fourth proportional to 101,505.63, 152,083.44 and 67,290.42 is: 100,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,505.63 : 152,083.44 = 67,290.42 : x
  2. Step 2: Convert to fraction form
    101,505.63/152,083.44 = 67,290.42/x
  3. Step 3: Cross multiply
    101,505.63x = 152,083.44 × 67,290.42
  4. Step 4: Simplify right side
    101,505.63x = 10,233,758,552.64
  5. Step 5: Solve for x
    x = 10,233,758,552.64/101,505.63
  6. Step 6: Final answer
    x = 100,819.62

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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.