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Finding the Third Proportional to 143,904 and 220,242.75

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Solution

The third proportional to 143,904 and 220,242.75 is: 337,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,904 : 220,242.75 = 220,242.75 : x
  2. Step 2: Convert to fraction form
    143,904/220,242.75 = 220,242.75/x
  3. Step 3: Cross multiply
    143,904x = 220,242.75 × 220,242.75
  4. Step 4: Simplify right side
    143,904x = 48,506,868,927.56
  5. Step 5: Solve for x
    x = 48,506,868,927.56/143,904
  6. Step 6: Final answer
    x = 337,077.98

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.