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Finding the Fourth Proportional to 74,203.66, 111,310.62 and 29,830.45

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Solution

The fourth proportional to 74,203.66, 111,310.62 and 29,830.45 is: 44,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,203.66 : 111,310.62 = 29,830.45 : x
  2. Step 2: Convert to fraction form
    74,203.66/111,310.62 = 29,830.45/x
  3. Step 3: Cross multiply
    74,203.66x = 111,310.62 × 29,830.45
  4. Step 4: Simplify right side
    74,203.66x = 3,320,445,327.83
  5. Step 5: Solve for x
    x = 3,320,445,327.83/74,203.66
  6. Step 6: Final answer
    x = 44,747.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.