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Finding the Third Proportional to 56,430 and 120,168

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Solution

The third proportional to 56,430 and 120,168 is: 255,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,430 : 120,168 = 120,168 : x
  2. Step 2: Convert to fraction form
    56,430/120,168 = 120,168/x
  3. Step 3: Cross multiply
    56,430x = 120,168 × 120,168
  4. Step 4: Simplify right side
    56,430x = 14,440,348,224
  5. Step 5: Solve for x
    x = 14,440,348,224/56,430
  6. Step 6: Final answer
    x = 255,898.43

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.