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Finding the Fourth Proportional to 74,362, 102,707.04 and 50,447.16

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Solution

The fourth proportional to 74,362, 102,707.04 and 50,447.16 is: 69,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,362 : 102,707.04 = 50,447.16 : x
  2. Step 2: Convert to fraction form
    74,362/102,707.04 = 50,447.16/x
  3. Step 3: Cross multiply
    74,362x = 102,707.04 × 50,447.16
  4. Step 4: Simplify right side
    74,362x = 5,181,278,480.01
  5. Step 5: Solve for x
    x = 5,181,278,480.01/74,362
  6. Step 6: Final answer
    x = 69,676.43

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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.