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Finding the Fourth Proportional to 192,042.80, 265,143.90 and 171,865

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Solution

The fourth proportional to 192,042.80, 265,143.90 and 171,865 is: 237,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,042.80 : 265,143.90 = 171,865 : x
  2. Step 2: Convert to fraction form
    192,042.80/265,143.90 = 171,865/x
  3. Step 3: Cross multiply
    192,042.80x = 265,143.90 × 171,865
  4. Step 4: Simplify right side
    192,042.80x = 45,568,956,373.50
  5. Step 5: Solve for x
    x = 45,568,956,373.50/192,042.80
  6. Step 6: Final answer
    x = 237,285.42

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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.