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Finding the Fourth Proportional to 61,751.58, 85,231.18 and 34,909.68

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Solution

The fourth proportional to 61,751.58, 85,231.18 and 34,909.68 is: 48,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,751.58 : 85,231.18 = 34,909.68 : x
  2. Step 2: Convert to fraction form
    61,751.58/85,231.18 = 34,909.68/x
  3. Step 3: Cross multiply
    61,751.58x = 85,231.18 × 34,909.68
  4. Step 4: Simplify right side
    61,751.58x = 2,975,393,219.82
  5. Step 5: Solve for x
    x = 2,975,393,219.82/61,751.58
  6. Step 6: Final answer
    x = 48,183.27

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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.