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Finding the Third Proportional to 162,718.88 and 251,916.75

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Solution

The third proportional to 162,718.88 and 251,916.75 is: 390,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,718.88 : 251,916.75 = 251,916.75 : x
  2. Step 2: Convert to fraction form
    162,718.88/251,916.75 = 251,916.75/x
  3. Step 3: Cross multiply
    162,718.88x = 251,916.75 × 251,916.75
  4. Step 4: Simplify right side
    162,718.88x = 63,462,048,930.56
  5. Step 5: Solve for x
    x = 63,462,048,930.56/162,718.88
  6. Step 6: Final answer
    x = 390,010.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.