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Finding the Fourth Proportional to 119,900.93, 165,463.32 and 66,185.98

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Solution

The fourth proportional to 119,900.93, 165,463.32 and 66,185.98 is: 91,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,900.93 : 165,463.32 = 66,185.98 : x
  2. Step 2: Convert to fraction form
    119,900.93/165,463.32 = 66,185.98/x
  3. Step 3: Cross multiply
    119,900.93x = 165,463.32 × 66,185.98
  4. Step 4: Simplify right side
    119,900.93x = 10,951,352,195.08
  5. Step 5: Solve for x
    x = 10,951,352,195.08/119,900.93
  6. Step 6: Final answer
    x = 91,336.67

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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.