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Finding the Third Proportional to 108,723 and 153,106

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Solution

The third proportional to 108,723 and 153,106 is: 215,607.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,723 : 153,106 = 153,106 : x
  2. Step 2: Convert to fraction form
    108,723/153,106 = 153,106/x
  3. Step 3: Cross multiply
    108,723x = 153,106 × 153,106
  4. Step 4: Simplify right side
    108,723x = 23,441,447,236
  5. Step 5: Solve for x
    x = 23,441,447,236/108,723
  6. Step 6: Final answer
    x = 215,607.07

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.