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Finding the Fourth Proportional to 125,251.74, 172,846.26 and 68,662.98

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Solution

The fourth proportional to 125,251.74, 172,846.26 and 68,662.98 is: 94,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,251.74 : 172,846.26 = 68,662.98 : x
  2. Step 2: Convert to fraction form
    125,251.74/172,846.26 = 68,662.98/x
  3. Step 3: Cross multiply
    125,251.74x = 172,846.26 × 68,662.98
  4. Step 4: Simplify right side
    125,251.74x = 11,868,139,293.45
  5. Step 5: Solve for x
    x = 11,868,139,293.45/125,251.74
  6. Step 6: Final answer
    x = 94,754.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.