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Finding the Fourth Proportional to 74,268, 111,123 and 52,124.58

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Solution

The fourth proportional to 74,268, 111,123 and 52,124.58 is: 77,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268 : 111,123 = 52,124.58 : x
  2. Step 2: Convert to fraction form
    74,268/111,123 = 52,124.58/x
  3. Step 3: Cross multiply
    74,268x = 111,123 × 52,124.58
  4. Step 4: Simplify right side
    74,268x = 5,792,239,703.34
  5. Step 5: Solve for x
    x = 5,792,239,703.34/74,268
  6. Step 6: Final answer
    x = 77,991.06

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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.