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Finding the Fourth Proportional to 251,498.36, 377,247.52 and 74,005.43

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Solution

The fourth proportional to 251,498.36, 377,247.52 and 74,005.43 is: 111,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,498.36 : 377,247.52 = 74,005.43 : x
  2. Step 2: Convert to fraction form
    251,498.36/377,247.52 = 74,005.43/x
  3. Step 3: Cross multiply
    251,498.36x = 377,247.52 × 74,005.43
  4. Step 4: Simplify right side
    251,498.36x = 27,918,362,862.78
  5. Step 5: Solve for x
    x = 27,918,362,862.78/251,498.36
  6. Step 6: Final answer
    x = 111,008.13

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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.