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Finding the Fourth Proportional to 71,911.80, 99,237.96 and 41,714.64

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Solution

The fourth proportional to 71,911.80, 99,237.96 and 41,714.64 is: 57,566.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,911.80 : 99,237.96 = 41,714.64 : x
  2. Step 2: Convert to fraction form
    71,911.80/99,237.96 = 41,714.64/x
  3. Step 3: Cross multiply
    71,911.80x = 99,237.96 × 41,714.64
  4. Step 4: Simplify right side
    71,911.80x = 4,139,675,775.73
  5. Step 5: Solve for x
    x = 4,139,675,775.73/71,911.80
  6. Step 6: Final answer
    x = 57,566.02

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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.