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Finding the Third Proportional to 107,290 and 228,440

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Solution

The third proportional to 107,290 and 228,440 is: 486,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,290 : 228,440 = 228,440 : x
  2. Step 2: Convert to fraction form
    107,290/228,440 = 228,440/x
  3. Step 3: Cross multiply
    107,290x = 228,440 × 228,440
  4. Step 4: Simplify right side
    107,290x = 52,184,833,600
  5. Step 5: Solve for x
    x = 52,184,833,600/107,290
  6. Step 6: Final answer
    x = 486,390.47

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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.