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Finding the Third Proportional to 71,155 and 107,201.50

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Solution

The third proportional to 71,155 and 107,201.50 is: 161,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,155 : 107,201.50 = 107,201.50 : x
  2. Step 2: Convert to fraction form
    71,155/107,201.50 = 107,201.50/x
  3. Step 3: Cross multiply
    71,155x = 107,201.50 × 107,201.50
  4. Step 4: Simplify right side
    71,155x = 11,492,161,602.25
  5. Step 5: Solve for x
    x = 11,492,161,602.25/71,155
  6. Step 6: Final answer
    x = 161,508.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.