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Finding the Fourth Proportional to 74,574.82, 102,913.21 and 41,040.82

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Solution

The fourth proportional to 74,574.82, 102,913.21 and 41,040.82 is: 56,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,574.82 : 102,913.21 = 41,040.82 : x
  2. Step 2: Convert to fraction form
    74,574.82/102,913.21 = 41,040.82/x
  3. Step 3: Cross multiply
    74,574.82x = 102,913.21 × 41,040.82
  4. Step 4: Simplify right side
    74,574.82x = 4,223,642,527.23
  5. Step 5: Solve for x
    x = 4,223,642,527.23/74,574.82
  6. Step 6: Final answer
    x = 56,636.31

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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.