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Finding the Fourth Proportional to 263,556.74, 363,706.76 and 142,695.49

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Solution

The fourth proportional to 263,556.74, 363,706.76 and 142,695.49 is: 196,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,556.74 : 363,706.76 = 142,695.49 : x
  2. Step 2: Convert to fraction form
    263,556.74/363,706.76 = 142,695.49/x
  3. Step 3: Cross multiply
    263,556.74x = 363,706.76 × 142,695.49
  4. Step 4: Simplify right side
    263,556.74x = 51,899,312,126.88
  5. Step 5: Solve for x
    x = 51,899,312,126.88/263,556.74
  6. Step 6: Final answer
    x = 196,918.94

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1.5x scale

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.