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Finding the Fourth Proportional to 75,126.64, 103,674.60 and 43,295.28

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Solution

The fourth proportional to 75,126.64, 103,674.60 and 43,295.28 is: 59,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.64 : 103,674.60 = 43,295.28 : x
  2. Step 2: Convert to fraction form
    75,126.64/103,674.60 = 43,295.28/x
  3. Step 3: Cross multiply
    75,126.64x = 103,674.60 × 43,295.28
  4. Step 4: Simplify right side
    75,126.64x = 4,488,620,835.89
  5. Step 5: Solve for x
    x = 4,488,620,835.89/75,126.64
  6. Step 6: Final answer
    x = 59,747.39

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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.