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Finding the Fourth Proportional to 251,559.53, 377,341.55 and 71,644.79

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Solution

The fourth proportional to 251,559.53, 377,341.55 and 71,644.79 is: 107,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,559.53 : 377,341.55 = 71,644.79 : x
  2. Step 2: Convert to fraction form
    251,559.53/377,341.55 = 71,644.79/x
  3. Step 3: Cross multiply
    251,559.53x = 377,341.55 × 71,644.79
  4. Step 4: Simplify right side
    251,559.53x = 27,034,553,863.09
  5. Step 5: Solve for x
    x = 27,034,553,863.09/251,559.53
  6. Step 6: Final answer
    x = 107,467.82

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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.