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Finding the Fourth Proportional to 74,838.52, 103,278 and 41,304.52

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Solution

The fourth proportional to 74,838.52, 103,278 and 41,304.52 is: 57,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.52 : 103,278 = 41,304.52 : x
  2. Step 2: Convert to fraction form
    74,838.52/103,278 = 41,304.52/x
  3. Step 3: Cross multiply
    74,838.52x = 103,278 × 41,304.52
  4. Step 4: Simplify right side
    74,838.52x = 4,265,848,216.56
  5. Step 5: Solve for x
    x = 4,265,848,216.56/74,838.52
  6. Step 6: Final answer
    x = 57,000.70

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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.