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Finding the Fourth Proportional to 205,556.60, 308,334.90 and 194,151.80

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Solution

The fourth proportional to 205,556.60, 308,334.90 and 194,151.80 is: 291,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,556.60 : 308,334.90 = 194,151.80 : x
  2. Step 2: Convert to fraction form
    205,556.60/308,334.90 = 194,151.80/x
  3. Step 3: Cross multiply
    205,556.60x = 308,334.90 × 194,151.80
  4. Step 4: Simplify right side
    205,556.60x = 59,863,775,837.82
  5. Step 5: Solve for x
    x = 59,863,775,837.82/205,556.60
  6. Step 6: Final answer
    x = 291,227.70

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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.