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Finding the Fourth Proportional to 281,591.94, 423,586.56 and 255,255.52

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Solution

The fourth proportional to 281,591.94, 423,586.56 and 255,255.52 is: 383,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,591.94 : 423,586.56 = 255,255.52 : x
  2. Step 2: Convert to fraction form
    281,591.94/423,586.56 = 255,255.52/x
  3. Step 3: Cross multiply
    281,591.94x = 423,586.56 × 255,255.52
  4. Step 4: Simplify right side
    281,591.94x = 108,122,807,637.81
  5. Step 5: Solve for x
    x = 108,122,807,637.81/281,591.94
  6. Step 6: Final answer
    x = 383,969.82

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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.