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Finding the Third Proportional to 87,430.13 and 135,003

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Solution

The third proportional to 87,430.13 and 135,003 is: 208,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,430.13 : 135,003 = 135,003 : x
  2. Step 2: Convert to fraction form
    87,430.13/135,003 = 135,003/x
  3. Step 3: Cross multiply
    87,430.13x = 135,003 × 135,003
  4. Step 4: Simplify right side
    87,430.13x = 18,225,810,009
  5. Step 5: Solve for x
    x = 18,225,810,009/87,430.13
  6. Step 6: Final answer
    x = 208,461.44

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.