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Finding the Fourth Proportional to 207,605.81, 311,166.77 and 95,297.88

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Solution

The fourth proportional to 207,605.81, 311,166.77 and 95,297.88 is: 142,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,605.81 : 311,166.77 = 95,297.88 : x
  2. Step 2: Convert to fraction form
    207,605.81/311,166.77 = 95,297.88/x
  3. Step 3: Cross multiply
    207,605.81x = 311,166.77 × 95,297.88
  4. Step 4: Simplify right side
    207,605.81x = 29,653,533,030.96
  5. Step 5: Solve for x
    x = 29,653,533,030.96/207,605.81
  6. Step 6: Final answer
    x = 142,835.76

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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.