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Finding the Fourth Proportional to 188,752.52, 283,128.71 and 68,818.46

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Solution

The fourth proportional to 188,752.52, 283,128.71 and 68,818.46 is: 103,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,752.52 : 283,128.71 = 68,818.46 : x
  2. Step 2: Convert to fraction form
    188,752.52/283,128.71 = 68,818.46/x
  3. Step 3: Cross multiply
    188,752.52x = 283,128.71 × 68,818.46
  4. Step 4: Simplify right side
    188,752.52x = 19,484,481,803.99
  5. Step 5: Solve for x
    x = 19,484,481,803.99/188,752.52
  6. Step 6: Final answer
    x = 103,227.66

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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.