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Finding the Fourth Proportional to 74,522.79, 111,675.51 and 34,554

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Solution

The fourth proportional to 74,522.79, 111,675.51 and 34,554 is: 51,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.79 : 111,675.51 = 34,554 : x
  2. Step 2: Convert to fraction form
    74,522.79/111,675.51 = 34,554/x
  3. Step 3: Cross multiply
    74,522.79x = 111,675.51 × 34,554
  4. Step 4: Simplify right side
    74,522.79x = 3,858,835,572.54
  5. Step 5: Solve for x
    x = 3,858,835,572.54/74,522.79
  6. Step 6: Final answer
    x = 51,780.61

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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.