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Finding the Fourth Proportional to 259,960.50, 389,940.75 and 93,748.50

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Solution

The fourth proportional to 259,960.50, 389,940.75 and 93,748.50 is: 140,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,960.50 : 389,940.75 = 93,748.50 : x
  2. Step 2: Convert to fraction form
    259,960.50/389,940.75 = 93,748.50/x
  3. Step 3: Cross multiply
    259,960.50x = 389,940.75 × 93,748.50
  4. Step 4: Simplify right side
    259,960.50x = 36,556,360,401.38
  5. Step 5: Solve for x
    x = 36,556,360,401.38/259,960.50
  6. Step 6: Final answer
    x = 140,622.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.