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Finding the Fourth Proportional to 303,859.53, 455,811.47 and 104,178.23

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Solution

The fourth proportional to 303,859.53, 455,811.47 and 104,178.23 is: 156,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,859.53 : 455,811.47 = 104,178.23 : x
  2. Step 2: Convert to fraction form
    303,859.53/455,811.47 = 104,178.23/x
  3. Step 3: Cross multiply
    303,859.53x = 455,811.47 × 104,178.23
  4. Step 4: Simplify right side
    303,859.53x = 47,485,632,158.30
  5. Step 5: Solve for x
    x = 47,485,632,158.30/303,859.53
  6. Step 6: Final answer
    x = 156,274.95

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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.