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Finding the Fourth Proportional to 74,838.74, 103,270.11 and 41,302.58

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Solution

The fourth proportional to 74,838.74, 103,270.11 and 41,302.58 is: 56,993.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.74 : 103,270.11 = 41,302.58 : x
  2. Step 2: Convert to fraction form
    74,838.74/103,270.11 = 41,302.58/x
  3. Step 3: Cross multiply
    74,838.74x = 103,270.11 × 41,302.58
  4. Step 4: Simplify right side
    74,838.74x = 4,265,321,979.88
  5. Step 5: Solve for x
    x = 4,265,321,979.88/74,838.74
  6. Step 6: Final answer
    x = 56,993.50

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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.