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Finding the Fourth Proportional to 75,325.74, 103,945.03 and 43,063.84

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Solution

The fourth proportional to 75,325.74, 103,945.03 and 43,063.84 is: 59,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,325.74 : 103,945.03 = 43,063.84 : x
  2. Step 2: Convert to fraction form
    75,325.74/103,945.03 = 43,063.84/x
  3. Step 3: Cross multiply
    75,325.74x = 103,945.03 × 43,063.84
  4. Step 4: Simplify right side
    75,325.74x = 4,476,272,140.72
  5. Step 5: Solve for x
    x = 4,476,272,140.72/75,325.74
  6. Step 6: Final answer
    x = 59,425.53

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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.