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Finding the Fourth Proportional to 257,028.62, 354,657.18 and 161,467.64

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Solution

The fourth proportional to 257,028.62, 354,657.18 and 161,467.64 is: 222,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,028.62 : 354,657.18 = 161,467.64 : x
  2. Step 2: Convert to fraction form
    257,028.62/354,657.18 = 161,467.64/x
  3. Step 3: Cross multiply
    257,028.62x = 354,657.18 × 161,467.64
  4. Step 4: Simplify right side
    257,028.62x = 57,265,657,863.66
  5. Step 5: Solve for x
    x = 57,265,657,863.66/257,028.62
  6. Step 6: Final answer
    x = 222,798.76

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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.