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Finding the Third Proportional to 105,247.13 and 162,021.38

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Solution

The third proportional to 105,247.13 and 162,021.38 is: 249,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,247.13 : 162,021.38 = 162,021.38 : x
  2. Step 2: Convert to fraction form
    105,247.13/162,021.38 = 162,021.38/x
  3. Step 3: Cross multiply
    105,247.13x = 162,021.38 × 162,021.38
  4. Step 4: Simplify right side
    105,247.13x = 26,250,925,956.89
  5. Step 5: Solve for x
    x = 26,250,925,956.89/105,247.13
  6. Step 6: Final answer
    x = 249,421.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.