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Finding the Fourth Proportional to 73,963.26, 102,063.78 and 42,125.94

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Solution

The fourth proportional to 73,963.26, 102,063.78 and 42,125.94 is: 58,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,963.26 : 102,063.78 = 42,125.94 : x
  2. Step 2: Convert to fraction form
    73,963.26/102,063.78 = 42,125.94/x
  3. Step 3: Cross multiply
    73,963.26x = 102,063.78 × 42,125.94
  4. Step 4: Simplify right side
    73,963.26x = 4,299,532,672.45
  5. Step 5: Solve for x
    x = 4,299,532,672.45/73,963.26
  6. Step 6: Final answer
    x = 58,130.65

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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.