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Finding the Fourth Proportional to 74,498.82, 102,808.37 and 40,964.82

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Solution

The fourth proportional to 74,498.82, 102,808.37 and 40,964.82 is: 56,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.82 : 102,808.37 = 40,964.82 : x
  2. Step 2: Convert to fraction form
    74,498.82/102,808.37 = 40,964.82/x
  3. Step 3: Cross multiply
    74,498.82x = 102,808.37 × 40,964.82
  4. Step 4: Simplify right side
    74,498.82x = 4,211,525,652.68
  5. Step 5: Solve for x
    x = 4,211,525,652.68/74,498.82
  6. Step 6: Final answer
    x = 56,531.44

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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.