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Finding the Fourth Proportional to 71,160.75, 106,751.55 and 29,043.39

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Solution

The fourth proportional to 71,160.75, 106,751.55 and 29,043.39 is: 43,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,160.75 : 106,751.55 = 29,043.39 : x
  2. Step 2: Convert to fraction form
    71,160.75/106,751.55 = 29,043.39/x
  3. Step 3: Cross multiply
    71,160.75x = 106,751.55 × 29,043.39
  4. Step 4: Simplify right side
    71,160.75x = 3,100,426,899.75
  5. Step 5: Solve for x
    x = 3,100,426,899.75/71,160.75
  6. Step 6: Final answer
    x = 43,569.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.