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Finding the Third Proportional to 165,490.50 and 357,219

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Solution

The third proportional to 165,490.50 and 357,219 is: 771,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,490.50 : 357,219 = 357,219 : x
  2. Step 2: Convert to fraction form
    165,490.50/357,219 = 357,219/x
  3. Step 3: Cross multiply
    165,490.50x = 357,219 × 357,219
  4. Step 4: Simplify right side
    165,490.50x = 127,605,413,961
  5. Step 5: Solve for x
    x = 127,605,413,961/165,490.50
  6. Step 6: Final answer
    x = 771,073.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.