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Finding the Fourth Proportional to 213,324.74, 319,882.62 and 124,600.58

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Solution

The fourth proportional to 213,324.74, 319,882.62 and 124,600.58 is: 186,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,324.74 : 319,882.62 = 124,600.58 : x
  2. Step 2: Convert to fraction form
    213,324.74/319,882.62 = 124,600.58/x
  3. Step 3: Cross multiply
    213,324.74x = 319,882.62 × 124,600.58
  4. Step 4: Simplify right side
    213,324.74x = 39,857,559,983.92
  5. Step 5: Solve for x
    x = 39,857,559,983.92/213,324.74
  6. Step 6: Final answer
    x = 186,839.84

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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.