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Finding the Fourth Proportional to 74,841.63, 103,299.21 and 43,029.06

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Solution

The fourth proportional to 74,841.63, 103,299.21 and 43,029.06 is: 59,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,841.63 : 103,299.21 = 43,029.06 : x
  2. Step 2: Convert to fraction form
    74,841.63/103,299.21 = 43,029.06/x
  3. Step 3: Cross multiply
    74,841.63x = 103,299.21 × 43,029.06
  4. Step 4: Simplify right side
    74,841.63x = 4,444,867,905.04
  5. Step 5: Solve for x
    x = 4,444,867,905.04/74,841.63
  6. Step 6: Final answer
    x = 59,390.31

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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.