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Finding the Fourth Proportional to 80,703, 121,073.94 and 25,299

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Solution

The fourth proportional to 80,703, 121,073.94 and 25,299 is: 37,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,703 : 121,073.94 = 25,299 : x
  2. Step 2: Convert to fraction form
    80,703/121,073.94 = 25,299/x
  3. Step 3: Cross multiply
    80,703x = 121,073.94 × 25,299
  4. Step 4: Simplify right side
    80,703x = 3,063,049,608.06
  5. Step 5: Solve for x
    x = 3,063,049,608.06/80,703
  6. Step 6: Final answer
    x = 37,954.59

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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.