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Finding the Fourth Proportional to 171,042.70, 256,564.05 and 168,126.70

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Solution

The fourth proportional to 171,042.70, 256,564.05 and 168,126.70 is: 252,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,042.70 : 256,564.05 = 168,126.70 : x
  2. Step 2: Convert to fraction form
    171,042.70/256,564.05 = 168,126.70/x
  3. Step 3: Cross multiply
    171,042.70x = 256,564.05 × 168,126.70
  4. Step 4: Simplify right side
    171,042.70x = 43,135,267,065.14
  5. Step 5: Solve for x
    x = 43,135,267,065.14/171,042.70
  6. Step 6: Final answer
    x = 252,190.05

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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.