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Finding the Fourth Proportional to 191,843.37, 287,518.78 and 91,853.73

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Solution

The fourth proportional to 191,843.37, 287,518.78 and 91,853.73 is: 137,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,843.37 : 287,518.78 = 91,853.73 : x
  2. Step 2: Convert to fraction form
    191,843.37/287,518.78 = 91,853.73/x
  3. Step 3: Cross multiply
    191,843.37x = 287,518.78 × 91,853.73
  4. Step 4: Simplify right side
    191,843.37x = 26,409,672,502.87
  5. Step 5: Solve for x
    x = 26,409,672,502.87/191,843.37
  6. Step 6: Final answer
    x = 137,662.68

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1.5x scale

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.