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Finding the Fourth Proportional to 288,259.26, 397,767.42 and 167,376.90

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Solution

The fourth proportional to 288,259.26, 397,767.42 and 167,376.90 is: 230,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,259.26 : 397,767.42 = 167,376.90 : x
  2. Step 2: Convert to fraction form
    288,259.26/397,767.42 = 167,376.90/x
  3. Step 3: Cross multiply
    288,259.26x = 397,767.42 × 167,376.90
  4. Step 4: Simplify right side
    288,259.26x = 66,577,077,680.60
  5. Step 5: Solve for x
    x = 66,577,077,680.60/288,259.26
  6. Step 6: Final answer
    x = 230,962.49

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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.