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Finding the Fourth Proportional to 169,123.69, 253,706.39 and 55,268.81

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Solution

The fourth proportional to 169,123.69, 253,706.39 and 55,268.81 is: 82,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,123.69 : 253,706.39 = 55,268.81 : x
  2. Step 2: Convert to fraction form
    169,123.69/253,706.39 = 55,268.81/x
  3. Step 3: Cross multiply
    169,123.69x = 253,706.39 × 55,268.81
  4. Step 4: Simplify right side
    169,123.69x = 14,022,048,927.08
  5. Step 5: Solve for x
    x = 14,022,048,927.08/169,123.69
  6. Step 6: Final answer
    x = 82,910.02

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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.