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Finding the Fourth Proportional to 172,365.80, 258,548.70 and 149,556.20

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Solution

The fourth proportional to 172,365.80, 258,548.70 and 149,556.20 is: 224,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,365.80 : 258,548.70 = 149,556.20 : x
  2. Step 2: Convert to fraction form
    172,365.80/258,548.70 = 149,556.20/x
  3. Step 3: Cross multiply
    172,365.80x = 258,548.70 × 149,556.20
  4. Step 4: Simplify right side
    172,365.80x = 38,667,561,086.94
  5. Step 5: Solve for x
    x = 38,667,561,086.94/172,365.80
  6. Step 6: Final answer
    x = 224,334.30

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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.