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Finding the Fourth Proportional to 74,629.52, 103,057.16 and 47,414.38

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Solution

The fourth proportional to 74,629.52, 103,057.16 and 47,414.38 is: 65,475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629.52 : 103,057.16 = 47,414.38 : x
  2. Step 2: Convert to fraction form
    74,629.52/103,057.16 = 47,414.38/x
  3. Step 3: Cross multiply
    74,629.52x = 103,057.16 × 47,414.38
  4. Step 4: Simplify right side
    74,629.52x = 4,886,391,345.96
  5. Step 5: Solve for x
    x = 4,886,391,345.96/74,629.52
  6. Step 6: Final answer
    x = 65,475.32

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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.