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Finding the Fourth Proportional to 252,535.32, 378,737.37 and 74,994.66

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Solution

The fourth proportional to 252,535.32, 378,737.37 and 74,994.66 is: 112,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,535.32 : 378,737.37 = 74,994.66 : x
  2. Step 2: Convert to fraction form
    252,535.32/378,737.37 = 74,994.66/x
  3. Step 3: Cross multiply
    252,535.32x = 378,737.37 × 74,994.66
  4. Step 4: Simplify right side
    252,535.32x = 28,403,280,292.44
  5. Step 5: Solve for x
    x = 28,403,280,292.44/252,535.32
  6. Step 6: Final answer
    x = 112,472.51

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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.