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Finding the Fourth Proportional to 275,009.70, 412,514.55 and 164,417.70

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Solution

The fourth proportional to 275,009.70, 412,514.55 and 164,417.70 is: 246,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,009.70 : 412,514.55 = 164,417.70 : x
  2. Step 2: Convert to fraction form
    275,009.70/412,514.55 = 164,417.70/x
  3. Step 3: Cross multiply
    275,009.70x = 412,514.55 × 164,417.70
  4. Step 4: Simplify right side
    275,009.70x = 67,824,693,527.54
  5. Step 5: Solve for x
    x = 67,824,693,527.54/275,009.70
  6. Step 6: Final answer
    x = 246,626.55

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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.