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Finding the Third Proportional to 74,811 and 124,672.50

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Solution

The third proportional to 74,811 and 124,672.50 is: 207,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,811 : 124,672.50 = 124,672.50 : x
  2. Step 2: Convert to fraction form
    74,811/124,672.50 = 124,672.50/x
  3. Step 3: Cross multiply
    74,811x = 124,672.50 × 124,672.50
  4. Step 4: Simplify right side
    74,811x = 15,543,232,256.25
  5. Step 5: Solve for x
    x = 15,543,232,256.25/74,811
  6. Step 6: Final answer
    x = 207,766.67

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.