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Finding the Fourth Proportional to 252,323.85, 378,520.61 and 92,378.82

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Solution

The fourth proportional to 252,323.85, 378,520.61 and 92,378.82 is: 138,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,323.85 : 378,520.61 = 92,378.82 : x
  2. Step 2: Convert to fraction form
    252,323.85/378,520.61 = 92,378.82/x
  3. Step 3: Cross multiply
    252,323.85x = 378,520.61 × 92,378.82
  4. Step 4: Simplify right side
    252,323.85x = 34,967,286,835.59
  5. Step 5: Solve for x
    x = 34,967,286,835.59/252,323.85
  6. Step 6: Final answer
    x = 138,580.98

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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.