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Finding the Third Proportional to 197,019.75 and 312,024

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Solution

The third proportional to 197,019.75 and 312,024 is: 494,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,019.75 : 312,024 = 312,024 : x
  2. Step 2: Convert to fraction form
    197,019.75/312,024 = 312,024/x
  3. Step 3: Cross multiply
    197,019.75x = 312,024 × 312,024
  4. Step 4: Simplify right side
    197,019.75x = 97,358,976,576
  5. Step 5: Solve for x
    x = 97,358,976,576/197,019.75
  6. Step 6: Final answer
    x = 494,158.46

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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.