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Finding the Fourth Proportional to 74,833.74, 112,326.48 and 37,420.56

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Solution

The fourth proportional to 74,833.74, 112,326.48 and 37,420.56 is: 56,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,833.74 : 112,326.48 = 37,420.56 : x
  2. Step 2: Convert to fraction form
    74,833.74/112,326.48 = 37,420.56/x
  3. Step 3: Cross multiply
    74,833.74x = 112,326.48 × 37,420.56
  4. Step 4: Simplify right side
    74,833.74x = 4,203,319,784.43
  5. Step 5: Solve for x
    x = 4,203,319,784.43/74,833.74
  6. Step 6: Final answer
    x = 56,168.78

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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.