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Finding the Fourth Proportional to 192,057.33, 265,152.65 and 138,480.69

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Solution

The fourth proportional to 192,057.33, 265,152.65 and 138,480.69 is: 191,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,057.33 : 265,152.65 = 138,480.69 : x
  2. Step 2: Convert to fraction form
    192,057.33/265,152.65 = 138,480.69/x
  3. Step 3: Cross multiply
    192,057.33x = 265,152.65 × 138,480.69
  4. Step 4: Simplify right side
    192,057.33x = 36,718,521,234.93
  5. Step 5: Solve for x
    x = 36,718,521,234.93/192,057.33
  6. Step 6: Final answer
    x = 191,185.21

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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.