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Finding the Third Proportional to 66,906 and 124,236

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Solution

The third proportional to 66,906 and 124,236 is: 230,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906 : 124,236 = 124,236 : x
  2. Step 2: Convert to fraction form
    66,906/124,236 = 124,236/x
  3. Step 3: Cross multiply
    66,906x = 124,236 × 124,236
  4. Step 4: Simplify right side
    66,906x = 15,434,583,696
  5. Step 5: Solve for x
    x = 15,434,583,696/66,906
  6. Step 6: Final answer
    x = 230,690.58

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.