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Finding the Third Proportional to 215,412.75 and 460,147.50

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Solution

The third proportional to 215,412.75 and 460,147.50 is: 982,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,412.75 : 460,147.50 = 460,147.50 : x
  2. Step 2: Convert to fraction form
    215,412.75/460,147.50 = 460,147.50/x
  3. Step 3: Cross multiply
    215,412.75x = 460,147.50 × 460,147.50
  4. Step 4: Simplify right side
    215,412.75x = 211,735,721,756.25
  5. Step 5: Solve for x
    x = 211,735,721,756.25/215,412.75
  6. Step 6: Final answer
    x = 982,930.31

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.