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Finding the Third Proportional to 75,772 and 118,865

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Solution

The third proportional to 75,772 and 118,865 is: 186,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,772 : 118,865 = 118,865 : x
  2. Step 2: Convert to fraction form
    75,772/118,865 = 118,865/x
  3. Step 3: Cross multiply
    75,772x = 118,865 × 118,865
  4. Step 4: Simplify right side
    75,772x = 14,128,888,225
  5. Step 5: Solve for x
    x = 14,128,888,225/75,772
  6. Step 6: Final answer
    x = 186,465.82

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.