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Finding the Fourth Proportional to 125,049.88, 172,569.34 and 68,466.52

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Solution

The fourth proportional to 125,049.88, 172,569.34 and 68,466.52 is: 94,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,049.88 : 172,569.34 = 68,466.52 : x
  2. Step 2: Convert to fraction form
    125,049.88/172,569.34 = 68,466.52/x
  3. Step 3: Cross multiply
    125,049.88x = 172,569.34 × 68,466.52
  4. Step 4: Simplify right side
    125,049.88x = 11,815,222,168.50
  5. Step 5: Solve for x
    x = 11,815,222,168.50/125,049.88
  6. Step 6: Final answer
    x = 94,484.07

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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.