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Finding the Fourth Proportional to 261,081.96, 391,797.92 and 167,653.32

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Solution

The fourth proportional to 261,081.96, 391,797.92 and 167,653.32 is: 251,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,081.96 : 391,797.92 = 167,653.32 : x
  2. Step 2: Convert to fraction form
    261,081.96/391,797.92 = 167,653.32/x
  3. Step 3: Cross multiply
    261,081.96x = 391,797.92 × 167,653.32
  4. Step 4: Simplify right side
    261,081.96x = 65,686,222,057.09
  5. Step 5: Solve for x
    x = 65,686,222,057.09/261,081.96
  6. Step 6: Final answer
    x = 251,592.34

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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.