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Finding the Fourth Proportional to 192,296.90, 288,548.63 and 80,054.60

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Solution

The fourth proportional to 192,296.90, 288,548.63 and 80,054.60 is: 120,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,296.90 : 288,548.63 = 80,054.60 : x
  2. Step 2: Convert to fraction form
    192,296.90/288,548.63 = 80,054.60/x
  3. Step 3: Cross multiply
    192,296.90x = 288,548.63 × 80,054.60
  4. Step 4: Simplify right side
    192,296.90x = 23,099,643,312.18
  5. Step 5: Solve for x
    x = 23,099,643,312.18/192,296.90
  6. Step 6: Final answer
    x = 120,124.89

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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.