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Finding the Third Proportional to 120,652.50 and 191,205

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Solution

The third proportional to 120,652.50 and 191,205 is: 303,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,652.50 : 191,205 = 191,205 : x
  2. Step 2: Convert to fraction form
    120,652.50/191,205 = 191,205/x
  3. Step 3: Cross multiply
    120,652.50x = 191,205 × 191,205
  4. Step 4: Simplify right side
    120,652.50x = 36,559,352,025
  5. Step 5: Solve for x
    x = 36,559,352,025/120,652.50
  6. Step 6: Final answer
    x = 303,013.63

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.