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Finding the Fourth Proportional to 81,864.60, 112,979.64 and 46,052.44

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Solution

The fourth proportional to 81,864.60, 112,979.64 and 46,052.44 is: 63,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,864.60 : 112,979.64 = 46,052.44 : x
  2. Step 2: Convert to fraction form
    81,864.60/112,979.64 = 46,052.44/x
  3. Step 3: Cross multiply
    81,864.60x = 112,979.64 × 46,052.44
  4. Step 4: Simplify right side
    81,864.60x = 5,202,988,092.32
  5. Step 5: Solve for x
    x = 5,202,988,092.32/81,864.60
  6. Step 6: Final answer
    x = 63,556.02

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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.