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Finding the Fourth Proportional to 188,611.91, 260,285.49 and 102,571.89

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Solution

The fourth proportional to 188,611.91, 260,285.49 and 102,571.89 is: 141,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,611.91 : 260,285.49 = 102,571.89 : x
  2. Step 2: Convert to fraction form
    188,611.91/260,285.49 = 102,571.89/x
  3. Step 3: Cross multiply
    188,611.91x = 260,285.49 × 102,571.89
  4. Step 4: Simplify right side
    188,611.91x = 26,697,974,648.88
  5. Step 5: Solve for x
    x = 26,697,974,648.88/188,611.91
  6. Step 6: Final answer
    x = 141,549.79

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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.