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Finding the Third Proportional to 174,643 and 262,985

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Solution

The third proportional to 174,643 and 262,985 is: 396,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,643 : 262,985 = 262,985 : x
  2. Step 2: Convert to fraction form
    174,643/262,985 = 262,985/x
  3. Step 3: Cross multiply
    174,643x = 262,985 × 262,985
  4. Step 4: Simplify right side
    174,643x = 69,161,110,225
  5. Step 5: Solve for x
    x = 69,161,110,225/174,643
  6. Step 6: Final answer
    x = 396,014.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.