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Finding the Fourth Proportional to 89,862.62, 134,770.80 and 26,667.77

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Solution

The fourth proportional to 89,862.62, 134,770.80 and 26,667.77 is: 39,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,862.62 : 134,770.80 = 26,667.77 : x
  2. Step 2: Convert to fraction form
    89,862.62/134,770.80 = 26,667.77/x
  3. Step 3: Cross multiply
    89,862.62x = 134,770.80 × 26,667.77
  4. Step 4: Simplify right side
    89,862.62x = 3,594,036,579.33
  5. Step 5: Solve for x
    x = 3,594,036,579.33/89,862.62
  6. Step 6: Final answer
    x = 39,994.79

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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.