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Finding the Third Proportional to 75,270 and 103,213.50

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Solution

The third proportional to 75,270 and 103,213.50 is: 141,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,270 : 103,213.50 = 103,213.50 : x
  2. Step 2: Convert to fraction form
    75,270/103,213.50 = 103,213.50/x
  3. Step 3: Cross multiply
    75,270x = 103,213.50 × 103,213.50
  4. Step 4: Simplify right side
    75,270x = 10,653,026,582.25
  5. Step 5: Solve for x
    x = 10,653,026,582.25/75,270
  6. Step 6: Final answer
    x = 141,530.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.