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Finding the Fourth Proportional to 169,021.60, 253,532.40 and 167,855.20

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Solution

The fourth proportional to 169,021.60, 253,532.40 and 167,855.20 is: 251,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,021.60 : 253,532.40 = 167,855.20 : x
  2. Step 2: Convert to fraction form
    169,021.60/253,532.40 = 167,855.20/x
  3. Step 3: Cross multiply
    169,021.60x = 253,532.40 × 167,855.20
  4. Step 4: Simplify right side
    169,021.60x = 42,556,731,708.48
  5. Step 5: Solve for x
    x = 42,556,731,708.48/169,021.60
  6. Step 6: Final answer
    x = 251,782.80

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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.