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Finding the Fourth Proportional to 146,773, 202,546.74 and 79,705

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Solution

The fourth proportional to 146,773, 202,546.74 and 79,705 is: 109,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,773 : 202,546.74 = 79,705 : x
  2. Step 2: Convert to fraction form
    146,773/202,546.74 = 79,705/x
  3. Step 3: Cross multiply
    146,773x = 202,546.74 × 79,705
  4. Step 4: Simplify right side
    146,773x = 16,143,987,911.70
  5. Step 5: Solve for x
    x = 16,143,987,911.70/146,773
  6. Step 6: Final answer
    x = 109,992.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.