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Finding the Fourth Proportional to 92,715.88, 127,942.56 and 54,469.48

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Solution

The fourth proportional to 92,715.88, 127,942.56 and 54,469.48 is: 75,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,715.88 : 127,942.56 = 54,469.48 : x
  2. Step 2: Convert to fraction form
    92,715.88/127,942.56 = 54,469.48/x
  3. Step 3: Cross multiply
    92,715.88x = 127,942.56 × 54,469.48
  4. Step 4: Simplify right side
    92,715.88x = 6,968,964,713.07
  5. Step 5: Solve for x
    x = 6,968,964,713.07/92,715.88
  6. Step 6: Final answer
    x = 75,164.74

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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.