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Finding the Third Proportional to 141,712.50 and 311,070

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Solution

The third proportional to 141,712.50 and 311,070 is: 682,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,712.50 : 311,070 = 311,070 : x
  2. Step 2: Convert to fraction form
    141,712.50/311,070 = 311,070/x
  3. Step 3: Cross multiply
    141,712.50x = 311,070 × 311,070
  4. Step 4: Simplify right side
    141,712.50x = 96,764,544,900
  5. Step 5: Solve for x
    x = 96,764,544,900/141,712.50
  6. Step 6: Final answer
    x = 682,822.93

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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.