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Finding the Fourth Proportional to 262,571.76, 392,924.52 and 192,276.72

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Solution

The fourth proportional to 262,571.76, 392,924.52 and 192,276.72 is: 287,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,571.76 : 392,924.52 = 192,276.72 : x
  2. Step 2: Convert to fraction form
    262,571.76/392,924.52 = 192,276.72/x
  3. Step 3: Cross multiply
    262,571.76x = 392,924.52 × 192,276.72
  4. Step 4: Simplify right side
    262,571.76x = 75,550,237,913.17
  5. Step 5: Solve for x
    x = 75,550,237,913.17/262,571.76
  6. Step 6: Final answer
    x = 287,731.77

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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.