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Finding the Fourth Proportional to 251,548.88, 377,326.05 and 74,059.25

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Solution

The fourth proportional to 251,548.88, 377,326.05 and 74,059.25 is: 111,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,548.88 : 377,326.05 = 74,059.25 : x
  2. Step 2: Convert to fraction form
    251,548.88/377,326.05 = 74,059.25/x
  3. Step 3: Cross multiply
    251,548.88x = 377,326.05 × 74,059.25
  4. Step 4: Simplify right side
    251,548.88x = 27,944,484,074.53
  5. Step 5: Solve for x
    x = 27,944,484,074.53/251,548.88
  6. Step 6: Final answer
    x = 111,089.68

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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.