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Finding the Fourth Proportional to 255,793.75, 353,020.32 and 191,150.74

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Solution

The fourth proportional to 255,793.75, 353,020.32 and 191,150.74 is: 263,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,793.75 : 353,020.32 = 191,150.74 : x
  2. Step 2: Convert to fraction form
    255,793.75/353,020.32 = 191,150.74/x
  3. Step 3: Cross multiply
    255,793.75x = 353,020.32 × 191,150.74
  4. Step 4: Simplify right side
    255,793.75x = 67,480,094,042.61
  5. Step 5: Solve for x
    x = 67,480,094,042.61/255,793.75
  6. Step 6: Final answer
    x = 263,806.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.