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Finding the Fourth Proportional to 281,360.54, 388,326.62 and 166,703.73

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Solution

The fourth proportional to 281,360.54, 388,326.62 and 166,703.73 is: 230,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,360.54 : 388,326.62 = 166,703.73 : x
  2. Step 2: Convert to fraction form
    281,360.54/388,326.62 = 166,703.73/x
  3. Step 3: Cross multiply
    281,360.54x = 388,326.62 × 166,703.73
  4. Step 4: Simplify right side
    281,360.54x = 64,735,496,012.29
  5. Step 5: Solve for x
    x = 64,735,496,012.29/281,360.54
  6. Step 6: Final answer
    x = 230,080.22

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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.