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Finding the Third Proportional to 74,984.50 and 163,091

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Solution

The third proportional to 74,984.50 and 163,091 is: 354,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984.50 : 163,091 = 163,091 : x
  2. Step 2: Convert to fraction form
    74,984.50/163,091 = 163,091/x
  3. Step 3: Cross multiply
    74,984.50x = 163,091 × 163,091
  4. Step 4: Simplify right side
    74,984.50x = 26,598,674,281
  5. Step 5: Solve for x
    x = 26,598,674,281/74,984.50
  6. Step 6: Final answer
    x = 354,722.30

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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.