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Finding the Fourth Proportional to 125,954.99, 173,833.77 and 72,238.85

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Solution

The fourth proportional to 125,954.99, 173,833.77 and 72,238.85 is: 99,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,954.99 : 173,833.77 = 72,238.85 : x
  2. Step 2: Convert to fraction form
    125,954.99/173,833.77 = 72,238.85/x
  3. Step 3: Cross multiply
    125,954.99x = 173,833.77 × 72,238.85
  4. Step 4: Simplify right side
    125,954.99x = 12,557,550,766.80
  5. Step 5: Solve for x
    x = 12,557,550,766.80/125,954.99
  6. Step 6: Final answer
    x = 99,698.72

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1.5x scale

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.