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Finding the Fourth Proportional to 252,216.32, 378,376.32 and 104,472.32

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Solution

The fourth proportional to 252,216.32, 378,376.32 and 104,472.32 is: 156,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,216.32 : 378,376.32 = 104,472.32 : x
  2. Step 2: Convert to fraction form
    252,216.32/378,376.32 = 104,472.32/x
  3. Step 3: Cross multiply
    252,216.32x = 378,376.32 × 104,472.32
  4. Step 4: Simplify right side
    252,216.32x = 39,529,851,983.46
  5. Step 5: Solve for x
    x = 39,529,851,983.46/252,216.32
  6. Step 6: Final answer
    x = 156,729.95

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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.