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Finding the Fourth Proportional to 250,042.58, 345,059.17 and 135,321.32

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Solution

The fourth proportional to 250,042.58, 345,059.17 and 135,321.32 is: 186,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,042.58 : 345,059.17 = 135,321.32 : x
  2. Step 2: Convert to fraction form
    250,042.58/345,059.17 = 135,321.32/x
  3. Step 3: Cross multiply
    250,042.58x = 345,059.17 × 135,321.32
  4. Step 4: Simplify right side
    250,042.58x = 46,693,863,001.05
  5. Step 5: Solve for x
    x = 46,693,863,001.05/250,042.58
  6. Step 6: Final answer
    x = 186,743.65

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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.