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Finding the Fourth Proportional to 167,543.10, 251,326.80 and 100,839.60

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Solution

The fourth proportional to 167,543.10, 251,326.80 and 100,839.60 is: 151,266.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,543.10 : 251,326.80 = 100,839.60 : x
  2. Step 2: Convert to fraction form
    167,543.10/251,326.80 = 100,839.60/x
  3. Step 3: Cross multiply
    167,543.10x = 251,326.80 × 100,839.60
  4. Step 4: Simplify right side
    167,543.10x = 25,343,693,981.28
  5. Step 5: Solve for x
    x = 25,343,693,981.28/167,543.10
  6. Step 6: Final answer
    x = 151,266.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.