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Finding the Fourth Proportional to 263,253.63, 363,290.09 and 148,556.65

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Solution

The fourth proportional to 263,253.63, 363,290.09 and 148,556.65 is: 205,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,253.63 : 363,290.09 = 148,556.65 : x
  2. Step 2: Convert to fraction form
    263,253.63/363,290.09 = 148,556.65/x
  3. Step 3: Cross multiply
    263,253.63x = 363,290.09 × 148,556.65
  4. Step 4: Simplify right side
    263,253.63x = 53,969,158,748.60
  5. Step 5: Solve for x
    x = 53,969,158,748.60/263,253.63
  6. Step 6: Final answer
    x = 205,008.22

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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.