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Finding the Fourth Proportional to 195,722.40, 274,380 and 195,722.40

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Solution

The fourth proportional to 195,722.40, 274,380 and 195,722.40 is: 274,380

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,722.40 : 274,380 = 195,722.40 : x
  2. Step 2: Convert to fraction form
    195,722.40/274,380 = 195,722.40/x
  3. Step 3: Cross multiply
    195,722.40x = 274,380 × 195,722.40
  4. Step 4: Simplify right side
    195,722.40x = 53,702,312,112
  5. Step 5: Solve for x
    x = 53,702,312,112/195,722.40
  6. Step 6: Final answer
    x = 274,380

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.