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Finding the Third Proportional to 214,666.50 and 315,435

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Solution

The third proportional to 214,666.50 and 315,435 is: 463,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,666.50 : 315,435 = 315,435 : x
  2. Step 2: Convert to fraction form
    214,666.50/315,435 = 315,435/x
  3. Step 3: Cross multiply
    214,666.50x = 315,435 × 315,435
  4. Step 4: Simplify right side
    214,666.50x = 99,499,239,225
  5. Step 5: Solve for x
    x = 99,499,239,225/214,666.50
  6. Step 6: Final answer
    x = 463,506.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.