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Finding the Fourth Proportional to 99,771.48, 149,653.56 and 29,648.97

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Solution

The fourth proportional to 99,771.48, 149,653.56 and 29,648.97 is: 44,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,771.48 : 149,653.56 = 29,648.97 : x
  2. Step 2: Convert to fraction form
    99,771.48/149,653.56 = 29,648.97/x
  3. Step 3: Cross multiply
    99,771.48x = 149,653.56 × 29,648.97
  4. Step 4: Simplify right side
    99,771.48x = 4,437,073,910.83
  5. Step 5: Solve for x
    x = 4,437,073,910.83/99,771.48
  6. Step 6: Final answer
    x = 44,472.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.