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Finding the Fourth Proportional to 74,995.80, 103,494.48 and 41,003.76

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Solution

The fourth proportional to 74,995.80, 103,494.48 and 41,003.76 is: 56,585.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,995.80 : 103,494.48 = 41,003.76 : x
  2. Step 2: Convert to fraction form
    74,995.80/103,494.48 = 41,003.76/x
  3. Step 3: Cross multiply
    74,995.80x = 103,494.48 × 41,003.76
  4. Step 4: Simplify right side
    74,995.80x = 4,243,662,819.24
  5. Step 5: Solve for x
    x = 4,243,662,819.24/74,995.80
  6. Step 6: Final answer
    x = 56,585.34

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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.