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Finding the Third Proportional to 163,154 and 335,090

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Solution

The third proportional to 163,154 and 335,090 is: 688,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,154 : 335,090 = 335,090 : x
  2. Step 2: Convert to fraction form
    163,154/335,090 = 335,090/x
  3. Step 3: Cross multiply
    163,154x = 335,090 × 335,090
  4. Step 4: Simplify right side
    163,154x = 112,285,308,100
  5. Step 5: Solve for x
    x = 112,285,308,100/163,154
  6. Step 6: Final answer
    x = 688,216.70

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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.