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Finding the Fourth Proportional to 125,525.52, 173,228.76 and 68,940.54

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Solution

The fourth proportional to 125,525.52, 173,228.76 and 68,940.54 is: 95,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,525.52 : 173,228.76 = 68,940.54 : x
  2. Step 2: Convert to fraction form
    125,525.52/173,228.76 = 68,940.54/x
  3. Step 3: Cross multiply
    125,525.52x = 173,228.76 × 68,940.54
  4. Step 4: Simplify right side
    125,525.52x = 11,942,484,257.93
  5. Step 5: Solve for x
    x = 11,942,484,257.93/125,525.52
  6. Step 6: Final answer
    x = 95,139.89

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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.