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Finding the Fourth Proportional to 98,916, 136,504.08 and 54,204

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Solution

The fourth proportional to 98,916, 136,504.08 and 54,204 is: 74,801.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,916 : 136,504.08 = 54,204 : x
  2. Step 2: Convert to fraction form
    98,916/136,504.08 = 54,204/x
  3. Step 3: Cross multiply
    98,916x = 136,504.08 × 54,204
  4. Step 4: Simplify right side
    98,916x = 7,399,067,152.32
  5. Step 5: Solve for x
    x = 7,399,067,152.32/98,916
  6. Step 6: Final answer
    x = 74,801.52

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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.