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Finding the Third Proportional to 91,853.75 and 130,009

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Solution

The third proportional to 91,853.75 and 130,009 is: 184,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,853.75 : 130,009 = 130,009 : x
  2. Step 2: Convert to fraction form
    91,853.75/130,009 = 130,009/x
  3. Step 3: Cross multiply
    91,853.75x = 130,009 × 130,009
  4. Step 4: Simplify right side
    91,853.75x = 16,902,340,081
  5. Step 5: Solve for x
    x = 16,902,340,081/91,853.75
  6. Step 6: Final answer
    x = 184,013.61

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.