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Finding the Third Proportional to 210,775.50 and 316,167.75

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Solution

The third proportional to 210,775.50 and 316,167.75 is: 474,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,775.50 : 316,167.75 = 316,167.75 : x
  2. Step 2: Convert to fraction form
    210,775.50/316,167.75 = 316,167.75/x
  3. Step 3: Cross multiply
    210,775.50x = 316,167.75 × 316,167.75
  4. Step 4: Simplify right side
    210,775.50x = 99,962,046,140.06
  5. Step 5: Solve for x
    x = 99,962,046,140.06/210,775.50
  6. Step 6: Final answer
    x = 474,258.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.