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Finding the Fourth Proportional to 250,617.64, 345,820.48 and 143,194.63

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Solution

The fourth proportional to 250,617.64, 345,820.48 and 143,194.63 is: 197,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,617.64 : 345,820.48 = 143,194.63 : x
  2. Step 2: Convert to fraction form
    250,617.64/345,820.48 = 143,194.63/x
  3. Step 3: Cross multiply
    250,617.64x = 345,820.48 × 143,194.63
  4. Step 4: Simplify right side
    250,617.64x = 49,519,635,680.02
  5. Step 5: Solve for x
    x = 49,519,635,680.02/250,617.64
  6. Step 6: Final answer
    x = 197,590.38

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Double scale
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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.