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Finding the Fourth Proportional to 283,424.52, 391,288.50 and 188,060.52

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Solution

The fourth proportional to 283,424.52, 391,288.50 and 188,060.52 is: 259,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,424.52 : 391,288.50 = 188,060.52 : x
  2. Step 2: Convert to fraction form
    283,424.52/391,288.50 = 188,060.52/x
  3. Step 3: Cross multiply
    283,424.52x = 391,288.50 × 188,060.52
  4. Step 4: Simplify right side
    283,424.52x = 73,585,918,780.02
  5. Step 5: Solve for x
    x = 73,585,918,780.02/283,424.52
  6. Step 6: Final answer
    x = 259,631.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.