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Finding the Third Proportional to 148,724 and 212,010

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Solution

The third proportional to 148,724 and 212,010 is: 302,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,724 : 212,010 = 212,010 : x
  2. Step 2: Convert to fraction form
    148,724/212,010 = 212,010/x
  3. Step 3: Cross multiply
    148,724x = 212,010 × 212,010
  4. Step 4: Simplify right side
    148,724x = 44,948,240,100
  5. Step 5: Solve for x
    x = 44,948,240,100/148,724
  6. Step 6: Final answer
    x = 302,225.87

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.