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Finding the Third Proportional to 131,245 and 286,547

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Solution

The third proportional to 131,245 and 286,547 is: 625,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,245 : 286,547 = 286,547 : x
  2. Step 2: Convert to fraction form
    131,245/286,547 = 286,547/x
  3. Step 3: Cross multiply
    131,245x = 286,547 × 286,547
  4. Step 4: Simplify right side
    131,245x = 82,109,183,209
  5. Step 5: Solve for x
    x = 82,109,183,209/131,245
  6. Step 6: Final answer
    x = 625,617.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.