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Finding the Third Proportional to 164,025 and 215,379

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Solution

The third proportional to 164,025 and 215,379 is: 282,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,025 : 215,379 = 215,379 : x
  2. Step 2: Convert to fraction form
    164,025/215,379 = 215,379/x
  3. Step 3: Cross multiply
    164,025x = 215,379 × 215,379
  4. Step 4: Simplify right side
    164,025x = 46,388,113,641
  5. Step 5: Solve for x
    x = 46,388,113,641/164,025
  6. Step 6: Final answer
    x = 282,811.24

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.