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Finding the Fourth Proportional to 174,015.40, 260,850.30 and 80,357.80

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Solution

The fourth proportional to 174,015.40, 260,850.30 and 80,357.80 is: 120,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,015.40 : 260,850.30 = 80,357.80 : x
  2. Step 2: Convert to fraction form
    174,015.40/260,850.30 = 80,357.80/x
  3. Step 3: Cross multiply
    174,015.40x = 260,850.30 × 80,357.80
  4. Step 4: Simplify right side
    174,015.40x = 20,961,356,237.34
  5. Step 5: Solve for x
    x = 20,961,356,237.34/174,015.40
  6. Step 6: Final answer
    x = 120,456.90

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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.