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Finding the Fourth Proportional to 74,719.44, 103,054.50 and 47,864.44

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Solution

The fourth proportional to 74,719.44, 103,054.50 and 47,864.44 is: 66,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,719.44 : 103,054.50 = 47,864.44 : x
  2. Step 2: Convert to fraction form
    74,719.44/103,054.50 = 47,864.44/x
  3. Step 3: Cross multiply
    74,719.44x = 103,054.50 × 47,864.44
  4. Step 4: Simplify right side
    74,719.44x = 4,932,646,283.33
  5. Step 5: Solve for x
    x = 4,932,646,283.33/74,719.44
  6. Step 6: Final answer
    x = 66,015.57

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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.