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Finding the Third Proportional to 141,639 and 302,229

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Solution

The third proportional to 141,639 and 302,229 is: 644,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,639 : 302,229 = 302,229 : x
  2. Step 2: Convert to fraction form
    141,639/302,229 = 302,229/x
  3. Step 3: Cross multiply
    141,639x = 302,229 × 302,229
  4. Step 4: Simplify right side
    141,639x = 91,342,368,441
  5. Step 5: Solve for x
    x = 91,342,368,441/141,639
  6. Step 6: Final answer
    x = 644,895.60

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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.