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Finding the Third Proportional to 78,225 and 160,095

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Solution

The third proportional to 78,225 and 160,095 is: 327,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,225 : 160,095 = 160,095 : x
  2. Step 2: Convert to fraction form
    78,225/160,095 = 160,095/x
  3. Step 3: Cross multiply
    78,225x = 160,095 × 160,095
  4. Step 4: Simplify right side
    78,225x = 25,630,409,025
  5. Step 5: Solve for x
    x = 25,630,409,025/78,225
  6. Step 6: Final answer
    x = 327,649.84

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.