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Finding the Fourth Proportional to 251,805.19, 377,579.46 and 123,729.98

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Solution

The fourth proportional to 251,805.19, 377,579.46 and 123,729.98 is: 185,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,805.19 : 377,579.46 = 123,729.98 : x
  2. Step 2: Convert to fraction form
    251,805.19/377,579.46 = 123,729.98/x
  3. Step 3: Cross multiply
    251,805.19x = 377,579.46 × 123,729.98
  4. Step 4: Simplify right side
    251,805.19x = 46,717,901,153.10
  5. Step 5: Solve for x
    x = 46,717,901,153.10/251,805.19
  6. Step 6: Final answer
    x = 185,531.93

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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.