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Finding the Fourth Proportional to 74,868.96, 103,319.64 and 41,334.96

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Solution

The fourth proportional to 74,868.96, 103,319.64 and 41,334.96 is: 57,042.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.96 : 103,319.64 = 41,334.96 : x
  2. Step 2: Convert to fraction form
    74,868.96/103,319.64 = 41,334.96/x
  3. Step 3: Cross multiply
    74,868.96x = 103,319.64 × 41,334.96
  4. Step 4: Simplify right side
    74,868.96x = 4,270,713,186.61
  5. Step 5: Solve for x
    x = 4,270,713,186.61/74,868.96
  6. Step 6: Final answer
    x = 57,042.51

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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.