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Finding the Fourth Proportional to 275,116.60, 412,674.90 and 169,994.80

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Solution

The fourth proportional to 275,116.60, 412,674.90 and 169,994.80 is: 254,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,116.60 : 412,674.90 = 169,994.80 : x
  2. Step 2: Convert to fraction form
    275,116.60/412,674.90 = 169,994.80/x
  3. Step 3: Cross multiply
    275,116.60x = 412,674.90 × 169,994.80
  4. Step 4: Simplify right side
    275,116.60x = 70,152,587,090.52
  5. Step 5: Solve for x
    x = 70,152,587,090.52/275,116.60
  6. Step 6: Final answer
    x = 254,992.20

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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.