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Finding the Fourth Proportional to 90,575.52, 135,879.60 and 37,258.08

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Solution

The fourth proportional to 90,575.52, 135,879.60 and 37,258.08 is: 55,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,575.52 : 135,879.60 = 37,258.08 : x
  2. Step 2: Convert to fraction form
    90,575.52/135,879.60 = 37,258.08/x
  3. Step 3: Cross multiply
    90,575.52x = 135,879.60 × 37,258.08
  4. Step 4: Simplify right side
    90,575.52x = 5,062,613,007.17
  5. Step 5: Solve for x
    x = 5,062,613,007.17/90,575.52
  6. Step 6: Final answer
    x = 55,893.83

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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.