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Finding the Fourth Proportional to 74,752.56, 103,157.01 and 41,218.56

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Solution

The fourth proportional to 74,752.56, 103,157.01 and 41,218.56 is: 56,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,752.56 : 103,157.01 = 41,218.56 : x
  2. Step 2: Convert to fraction form
    74,752.56/103,157.01 = 41,218.56/x
  3. Step 3: Cross multiply
    74,752.56x = 103,157.01 × 41,218.56
  4. Step 4: Simplify right side
    74,752.56x = 4,251,983,406.11
  5. Step 5: Solve for x
    x = 4,251,983,406.11/74,752.56
  6. Step 6: Final answer
    x = 56,880.77

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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.