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Finding the Third Proportional to 187,964 and 423,245

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Solution

The third proportional to 187,964 and 423,245 is: 953,035.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,964 : 423,245 = 423,245 : x
  2. Step 2: Convert to fraction form
    187,964/423,245 = 423,245/x
  3. Step 3: Cross multiply
    187,964x = 423,245 × 423,245
  4. Step 4: Simplify right side
    187,964x = 179,136,330,025
  5. Step 5: Solve for x
    x = 179,136,330,025/187,964
  6. Step 6: Final answer
    x = 953,035.32

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.