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Finding the Fourth Proportional to 250,091.32, 345,125.96 and 135,369.94

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Solution

The fourth proportional to 250,091.32, 345,125.96 and 135,369.94 is: 186,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,091.32 : 345,125.96 = 135,369.94 : x
  2. Step 2: Convert to fraction form
    250,091.32/345,125.96 = 135,369.94/x
  3. Step 3: Cross multiply
    250,091.32x = 345,125.96 × 135,369.94
  4. Step 4: Simplify right side
    250,091.32x = 46,719,680,497.64
  5. Step 5: Solve for x
    x = 46,719,680,497.64/250,091.32
  6. Step 6: Final answer
    x = 186,810.48

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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.