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Finding the Fourth Proportional to 235,794.06, 325,399.95 and 128,367.18

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Solution

The fourth proportional to 235,794.06, 325,399.95 and 128,367.18 is: 177,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,794.06 : 325,399.95 = 128,367.18 : x
  2. Step 2: Convert to fraction form
    235,794.06/325,399.95 = 128,367.18/x
  3. Step 3: Cross multiply
    235,794.06x = 325,399.95 × 128,367.18
  4. Step 4: Simplify right side
    235,794.06x = 41,770,673,953.64
  5. Step 5: Solve for x
    x = 41,770,673,953.64/235,794.06
  6. Step 6: Final answer
    x = 177,148.97

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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.