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Finding the Fourth Proportional to 192,004.90, 288,335.40 and 125,738.80

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Solution

The fourth proportional to 192,004.90, 288,335.40 and 125,738.80 is: 188,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,004.90 : 288,335.40 = 125,738.80 : x
  2. Step 2: Convert to fraction form
    192,004.90/288,335.40 = 125,738.80/x
  3. Step 3: Cross multiply
    192,004.90x = 288,335.40 × 125,738.80
  4. Step 4: Simplify right side
    192,004.90x = 36,254,947,193.52
  5. Step 5: Solve for x
    x = 36,254,947,193.52/192,004.90
  6. Step 6: Final answer
    x = 188,823.03

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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.