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Finding the Third Proportional to 121,623 and 179,307

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Solution

The third proportional to 121,623 and 179,307 is: 264,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,623 : 179,307 = 179,307 : x
  2. Step 2: Convert to fraction form
    121,623/179,307 = 179,307/x
  3. Step 3: Cross multiply
    121,623x = 179,307 × 179,307
  4. Step 4: Simplify right side
    121,623x = 32,151,000,249
  5. Step 5: Solve for x
    x = 32,151,000,249/121,623
  6. Step 6: Final answer
    x = 264,349.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.