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Finding the Fourth Proportional to 75,170.64, 103,735.26 and 43,339.26

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Solution

The fourth proportional to 75,170.64, 103,735.26 and 43,339.26 is: 59,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,170.64 : 103,735.26 = 43,339.26 : x
  2. Step 2: Convert to fraction form
    75,170.64/103,735.26 = 43,339.26/x
  3. Step 3: Cross multiply
    75,170.64x = 103,735.26 × 43,339.26
  4. Step 4: Simplify right side
    75,170.64x = 4,495,809,404.31
  5. Step 5: Solve for x
    x = 4,495,809,404.31/75,170.64
  6. Step 6: Final answer
    x = 59,808.05

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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.