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Finding the Fourth Proportional to 192,686.40, 289,029.60 and 184,813.20

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Solution

The fourth proportional to 192,686.40, 289,029.60 and 184,813.20 is: 277,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,686.40 : 289,029.60 = 184,813.20 : x
  2. Step 2: Convert to fraction form
    192,686.40/289,029.60 = 184,813.20/x
  3. Step 3: Cross multiply
    192,686.40x = 289,029.60 × 184,813.20
  4. Step 4: Simplify right side
    192,686.40x = 53,416,485,270.72
  5. Step 5: Solve for x
    x = 53,416,485,270.72/192,686.40
  6. Step 6: Final answer
    x = 277,219.80

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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.