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Finding the Fourth Proportional to 74,878.52, 103,331.85 and 41,344.52

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Solution

The fourth proportional to 74,878.52, 103,331.85 and 41,344.52 is: 57,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,878.52 : 103,331.85 = 41,344.52 : x
  2. Step 2: Convert to fraction form
    74,878.52/103,331.85 = 41,344.52/x
  3. Step 3: Cross multiply
    74,878.52x = 103,331.85 × 41,344.52
  4. Step 4: Simplify right side
    74,878.52x = 4,272,205,738.96
  5. Step 5: Solve for x
    x = 4,272,205,738.96/74,878.52
  6. Step 6: Final answer
    x = 57,055.16

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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.