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Finding the Fourth Proportional to 125,776.88, 173,582.52 and 69,198.56

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Solution

The fourth proportional to 125,776.88, 173,582.52 and 69,198.56 is: 95,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,776.88 : 173,582.52 = 69,198.56 : x
  2. Step 2: Convert to fraction form
    125,776.88/173,582.52 = 69,198.56/x
  3. Step 3: Cross multiply
    125,776.88x = 173,582.52 × 69,198.56
  4. Step 4: Simplify right side
    125,776.88x = 12,011,660,425.17
  5. Step 5: Solve for x
    x = 12,011,660,425.17/125,776.88
  6. Step 6: Final answer
    x = 95,499.75

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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.