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Finding the Third Proportional to 77,190 and 164,746.50

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Solution

The third proportional to 77,190 and 164,746.50 is: 351,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,190 : 164,746.50 = 164,746.50 : x
  2. Step 2: Convert to fraction form
    77,190/164,746.50 = 164,746.50/x
  3. Step 3: Cross multiply
    77,190x = 164,746.50 × 164,746.50
  4. Step 4: Simplify right side
    77,190x = 27,141,409,262.25
  5. Step 5: Solve for x
    x = 27,141,409,262.25/77,190
  6. Step 6: Final answer
    x = 351,618.21

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.