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Finding the Fourth Proportional to 74,844.52, 103,283.86 and 40,851.88

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Solution

The fourth proportional to 74,844.52, 103,283.86 and 40,851.88 is: 56,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,844.52 : 103,283.86 = 40,851.88 : x
  2. Step 2: Convert to fraction form
    74,844.52/103,283.86 = 40,851.88/x
  3. Step 3: Cross multiply
    74,844.52x = 103,283.86 × 40,851.88
  4. Step 4: Simplify right side
    74,844.52x = 4,219,339,854.66
  5. Step 5: Solve for x
    x = 4,219,339,854.66/74,844.52
  6. Step 6: Final answer
    x = 56,374.73

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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.