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Finding the Fourth Proportional to 125,913.52, 173,771.22 and 69,335.56

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Solution

The fourth proportional to 125,913.52, 173,771.22 and 69,335.56 is: 95,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,913.52 : 173,771.22 = 69,335.56 : x
  2. Step 2: Convert to fraction form
    125,913.52/173,771.22 = 69,335.56/x
  3. Step 3: Cross multiply
    125,913.52x = 173,771.22 × 69,335.56
  4. Step 4: Simplify right side
    125,913.52x = 12,048,524,850.58
  5. Step 5: Solve for x
    x = 12,048,524,850.58/125,913.52
  6. Step 6: Final answer
    x = 95,688.89

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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.