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Finding the Fourth Proportional to 303,859.52, 455,811.46 and 104,178.22

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Solution

The fourth proportional to 303,859.52, 455,811.46 and 104,178.22 is: 156,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,859.52 : 455,811.46 = 104,178.22 : x
  2. Step 2: Convert to fraction form
    303,859.52/455,811.46 = 104,178.22/x
  3. Step 3: Cross multiply
    303,859.52x = 455,811.46 × 104,178.22
  4. Step 4: Simplify right side
    303,859.52x = 47,485,626,558.40
  5. Step 5: Solve for x
    x = 47,485,626,558.40/303,859.52
  6. Step 6: Final answer
    x = 156,274.93

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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.