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Finding the Third Proportional to 74,631 and 163,437

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Solution

The third proportional to 74,631 and 163,437 is: 357,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,631 : 163,437 = 163,437 : x
  2. Step 2: Convert to fraction form
    74,631/163,437 = 163,437/x
  3. Step 3: Cross multiply
    74,631x = 163,437 × 163,437
  4. Step 4: Simplify right side
    74,631x = 26,711,652,969
  5. Step 5: Solve for x
    x = 26,711,652,969/74,631
  6. Step 6: Final answer
    x = 357,916.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.