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Finding the Fourth Proportional to 125,092.50, 172,628.19 and 68,504.82

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Solution

The fourth proportional to 125,092.50, 172,628.19 and 68,504.82 is: 94,536.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,092.50 : 172,628.19 = 68,504.82 : x
  2. Step 2: Convert to fraction form
    125,092.50/172,628.19 = 68,504.82/x
  3. Step 3: Cross multiply
    125,092.50x = 172,628.19 × 68,504.82
  4. Step 4: Simplify right side
    125,092.50x = 11,825,863,082.88
  5. Step 5: Solve for x
    x = 11,825,863,082.88/125,092.50
  6. Step 6: Final answer
    x = 94,536.95

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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.