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Finding the Third Proportional to 101,875.50 and 216,891

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Solution

The third proportional to 101,875.50 and 216,891 is: 461,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,875.50 : 216,891 = 216,891 : x
  2. Step 2: Convert to fraction form
    101,875.50/216,891 = 216,891/x
  3. Step 3: Cross multiply
    101,875.50x = 216,891 × 216,891
  4. Step 4: Simplify right side
    101,875.50x = 47,041,705,881
  5. Step 5: Solve for x
    x = 47,041,705,881/101,875.50
  6. Step 6: Final answer
    x = 461,756.81

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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.