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Finding the Third Proportional to 178,519.50 and 371,835

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Solution

The third proportional to 178,519.50 and 371,835 is: 774,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,519.50 : 371,835 = 371,835 : x
  2. Step 2: Convert to fraction form
    178,519.50/371,835 = 371,835/x
  3. Step 3: Cross multiply
    178,519.50x = 371,835 × 371,835
  4. Step 4: Simplify right side
    178,519.50x = 138,261,267,225
  5. Step 5: Solve for x
    x = 138,261,267,225/178,519.50
  6. Step 6: Final answer
    x = 774,488.32

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.