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Finding the Fourth Proportional to 84,967.40, 127,548.30 and 49,926.80

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Solution

The fourth proportional to 84,967.40, 127,548.30 and 49,926.80 is: 74,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,967.40 : 127,548.30 = 49,926.80 : x
  2. Step 2: Convert to fraction form
    84,967.40/127,548.30 = 49,926.80/x
  3. Step 3: Cross multiply
    84,967.40x = 127,548.30 × 49,926.80
  4. Step 4: Simplify right side
    84,967.40x = 6,368,078,464.44
  5. Step 5: Solve for x
    x = 6,368,078,464.44/84,967.40
  6. Step 6: Final answer
    x = 74,947.31

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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.