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Finding the Third Proportional to 164,516 and 357,220

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Solution

The third proportional to 164,516 and 357,220 is: 775,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,516 : 357,220 = 357,220 : x
  2. Step 2: Convert to fraction form
    164,516/357,220 = 357,220/x
  3. Step 3: Cross multiply
    164,516x = 357,220 × 357,220
  4. Step 4: Simplify right side
    164,516x = 127,606,128,400
  5. Step 5: Solve for x
    x = 127,606,128,400/164,516
  6. Step 6: Final answer
    x = 775,645.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.