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Finding the Fourth Proportional to 263,643.68, 363,834.93 and 161,725.34

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Solution

The fourth proportional to 263,643.68, 363,834.93 and 161,725.34 is: 223,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,643.68 : 363,834.93 = 161,725.34 : x
  2. Step 2: Convert to fraction form
    263,643.68/363,834.93 = 161,725.34/x
  3. Step 3: Cross multiply
    263,643.68x = 363,834.93 × 161,725.34
  4. Step 4: Simplify right side
    263,643.68x = 58,841,325,938.95
  5. Step 5: Solve for x
    x = 58,841,325,938.95/263,643.68
  6. Step 6: Final answer
    x = 223,185.05

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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.