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Finding the Third Proportional to 62,397,405 and 139,133,880

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Solution

The third proportional to 62,397,405 and 139,133,880 is: 310,241,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,397,405 : 139,133,880 = 139,133,880 : x
  2. Step 2: Convert to fraction form
    62,397,405/139,133,880 = 139,133,880/x
  3. Step 3: Cross multiply
    62,397,405x = 139,133,880 × 139,133,880
  4. Step 4: Simplify right side
    62,397,405x = 19,358,236,563,854,400
  5. Step 5: Solve for x
    x = 19,358,236,563,854,400/62,397,405
  6. Step 6: Final answer
    x = 310,241,051.91

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.