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Finding the Fourth Proportional to 74,703.28, 103,090.53 and 41,169.28

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Solution

The fourth proportional to 74,703.28, 103,090.53 and 41,169.28 is: 56,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,703.28 : 103,090.53 = 41,169.28 : x
  2. Step 2: Convert to fraction form
    74,703.28/103,090.53 = 41,169.28/x
  3. Step 3: Cross multiply
    74,703.28x = 103,090.53 × 41,169.28
  4. Step 4: Simplify right side
    74,703.28x = 4,244,162,689.07
  5. Step 5: Solve for x
    x = 4,244,162,689.07/74,703.28
  6. Step 6: Final answer
    x = 56,813.61

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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.