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Finding the Fourth Proportional to 192,015.40, 288,368.70 and 185,794.60

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Solution

The fourth proportional to 192,015.40, 288,368.70 and 185,794.60 is: 279,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,015.40 : 288,368.70 = 185,794.60 : x
  2. Step 2: Convert to fraction form
    192,015.40/288,368.70 = 185,794.60/x
  3. Step 3: Cross multiply
    192,015.40x = 288,368.70 × 185,794.60
  4. Step 4: Simplify right side
    192,015.40x = 53,577,347,269.02
  5. Step 5: Solve for x
    x = 53,577,347,269.02/192,015.40
  6. Step 6: Final answer
    x = 279,026.30

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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.