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Finding the Fourth Proportional to 126,967.80, 190,464.66 and 43,851

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Solution

The fourth proportional to 126,967.80, 190,464.66 and 43,851 is: 65,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,967.80 : 190,464.66 = 43,851 : x
  2. Step 2: Convert to fraction form
    126,967.80/190,464.66 = 43,851/x
  3. Step 3: Cross multiply
    126,967.80x = 190,464.66 × 43,851
  4. Step 4: Simplify right side
    126,967.80x = 8,352,065,805.66
  5. Step 5: Solve for x
    x = 8,352,065,805.66/126,967.80
  6. Step 6: Final answer
    x = 65,780.98

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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.