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Finding the Third Proportional to 174,987 and 360,855

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Solution

The third proportional to 174,987 and 360,855 is: 744,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,987 : 360,855 = 360,855 : x
  2. Step 2: Convert to fraction form
    174,987/360,855 = 360,855/x
  3. Step 3: Cross multiply
    174,987x = 360,855 × 360,855
  4. Step 4: Simplify right side
    174,987x = 130,216,331,025
  5. Step 5: Solve for x
    x = 130,216,331,025/174,987
  6. Step 6: Final answer
    x = 744,148.60

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.