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Finding the Fourth Proportional to 120,460.65, 166,253.39 and 69,463.41

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Solution

The fourth proportional to 120,460.65, 166,253.39 and 69,463.41 is: 95,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,460.65 : 166,253.39 = 69,463.41 : x
  2. Step 2: Convert to fraction form
    120,460.65/166,253.39 = 69,463.41/x
  3. Step 3: Cross multiply
    120,460.65x = 166,253.39 × 69,463.41
  4. Step 4: Simplify right side
    120,460.65x = 11,548,527,393.46
  5. Step 5: Solve for x
    x = 11,548,527,393.46/120,460.65
  6. Step 6: Final answer
    x = 95,869.71

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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.