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Finding the Third Proportional to 120,759.75 and 265,423.50

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Solution

The third proportional to 120,759.75 and 265,423.50 is: 583,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.75 : 265,423.50 = 265,423.50 : x
  2. Step 2: Convert to fraction form
    120,759.75/265,423.50 = 265,423.50/x
  3. Step 3: Cross multiply
    120,759.75x = 265,423.50 × 265,423.50
  4. Step 4: Simplify right side
    120,759.75x = 70,449,634,352.25
  5. Step 5: Solve for x
    x = 70,449,634,352.25/120,759.75
  6. Step 6: Final answer
    x = 583,386.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.