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Finding the Third Proportional to 186,927.75 and 289,922.63

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Solution

The third proportional to 186,927.75 and 289,922.63 is: 449,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,927.75 : 289,922.63 = 289,922.63 : x
  2. Step 2: Convert to fraction form
    186,927.75/289,922.63 = 289,922.63/x
  3. Step 3: Cross multiply
    186,927.75x = 289,922.63 × 289,922.63
  4. Step 4: Simplify right side
    186,927.75x = 84,055,128,486.89
  5. Step 5: Solve for x
    x = 84,055,128,486.89/186,927.75
  6. Step 6: Final answer
    x = 449,666.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.