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Finding the Fourth Proportional to 92,009.26, 126,969.84 and 51,724.72

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Solution

The fourth proportional to 92,009.26, 126,969.84 and 51,724.72 is: 71,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,009.26 : 126,969.84 = 51,724.72 : x
  2. Step 2: Convert to fraction form
    92,009.26/126,969.84 = 51,724.72/x
  3. Step 3: Cross multiply
    92,009.26x = 126,969.84 × 51,724.72
  4. Step 4: Simplify right side
    92,009.26x = 6,567,479,422.44
  5. Step 5: Solve for x
    x = 6,567,479,422.44/92,009.26
  6. Step 6: Final answer
    x = 71,378.46

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1.5x scale

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.