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Finding the Fourth Proportional to 71,810.90, 107,765.54 and 25,063.77

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Solution

The fourth proportional to 71,810.90, 107,765.54 and 25,063.77 is: 37,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,810.90 : 107,765.54 = 25,063.77 : x
  2. Step 2: Convert to fraction form
    71,810.90/107,765.54 = 25,063.77/x
  3. Step 3: Cross multiply
    71,810.90x = 107,765.54 × 25,063.77
  4. Step 4: Simplify right side
    71,810.90x = 2,701,010,771.15
  5. Step 5: Solve for x
    x = 2,701,010,771.15/71,810.90
  6. Step 6: Final answer
    x = 37,612.83

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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.