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Finding the Fourth Proportional to 86,906.80, 130,374.60 and 37,010.80

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Solution

The fourth proportional to 86,906.80, 130,374.60 and 37,010.80 is: 55,522.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,906.80 : 130,374.60 = 37,010.80 : x
  2. Step 2: Convert to fraction form
    86,906.80/130,374.60 = 37,010.80/x
  3. Step 3: Cross multiply
    86,906.80x = 130,374.60 × 37,010.80
  4. Step 4: Simplify right side
    86,906.80x = 4,825,268,245.68
  5. Step 5: Solve for x
    x = 4,825,268,245.68/86,906.80
  6. Step 6: Final answer
    x = 55,522.33

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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.