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Finding the Fourth Proportional to 86,494.56, 129,747.33 and 36,565.35

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Solution

The fourth proportional to 86,494.56, 129,747.33 and 36,565.35 is: 54,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,494.56 : 129,747.33 = 36,565.35 : x
  2. Step 2: Convert to fraction form
    86,494.56/129,747.33 = 36,565.35/x
  3. Step 3: Cross multiply
    86,494.56x = 129,747.33 × 36,565.35
  4. Step 4: Simplify right side
    86,494.56x = 4,744,256,533.02
  5. Step 5: Solve for x
    x = 4,744,256,533.02/86,494.56
  6. Step 6: Final answer
    x = 54,850.35

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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.