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Finding the Third Proportional to 74,665.55 and 115,586.37

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Solution

The third proportional to 74,665.55 and 115,586.37 is: 178,934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,665.55 : 115,586.37 = 115,586.37 : x
  2. Step 2: Convert to fraction form
    74,665.55/115,586.37 = 115,586.37/x
  3. Step 3: Cross multiply
    74,665.55x = 115,586.37 × 115,586.37
  4. Step 4: Simplify right side
    74,665.55x = 13,360,208,279.60
  5. Step 5: Solve for x
    x = 13,360,208,279.60/74,665.55
  6. Step 6: Final answer
    x = 178,934.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.