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Finding the Third Proportional to 75,412.50 and 148,921.50

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Solution

The third proportional to 75,412.50 and 148,921.50 is: 294,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,412.50 : 148,921.50 = 148,921.50 : x
  2. Step 2: Convert to fraction form
    75,412.50/148,921.50 = 148,921.50/x
  3. Step 3: Cross multiply
    75,412.50x = 148,921.50 × 148,921.50
  4. Step 4: Simplify right side
    75,412.50x = 22,177,613,162.25
  5. Step 5: Solve for x
    x = 22,177,613,162.25/75,412.50
  6. Step 6: Final answer
    x = 294,084.05

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.