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Finding the Third Proportional to 98,490 and 147,698

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Solution

The third proportional to 98,490 and 147,698 is: 221,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490 : 147,698 = 147,698 : x
  2. Step 2: Convert to fraction form
    98,490/147,698 = 147,698/x
  3. Step 3: Cross multiply
    98,490x = 147,698 × 147,698
  4. Step 4: Simplify right side
    98,490x = 21,814,699,204
  5. Step 5: Solve for x
    x = 21,814,699,204/98,490
  6. Step 6: Final answer
    x = 221,491.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.