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Finding the Fourth Proportional to 120,482.38, 166,262.85 and 69,495.21

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Solution

The fourth proportional to 120,482.38, 166,262.85 and 69,495.21 is: 95,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,482.38 : 166,262.85 = 69,495.21 : x
  2. Step 2: Convert to fraction form
    120,482.38/166,262.85 = 69,495.21/x
  3. Step 3: Cross multiply
    120,482.38x = 166,262.85 × 69,495.21
  4. Step 4: Simplify right side
    120,482.38x = 11,554,471,675.95
  5. Step 5: Solve for x
    x = 11,554,471,675.95/120,482.38
  6. Step 6: Final answer
    x = 95,901.76

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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.