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Finding the Third Proportional to 120,271.50 and 261,038.25

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Solution

The third proportional to 120,271.50 and 261,038.25 is: 566,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.50 : 261,038.25 = 261,038.25 : x
  2. Step 2: Convert to fraction form
    120,271.50/261,038.25 = 261,038.25/x
  3. Step 3: Cross multiply
    120,271.50x = 261,038.25 × 261,038.25
  4. Step 4: Simplify right side
    120,271.50x = 68,140,967,963.06
  5. Step 5: Solve for x
    x = 68,140,967,963.06/120,271.50
  6. Step 6: Final answer
    x = 566,559.56

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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.