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Finding the Fourth Proportional to 114,661.80, 171,944.10 and 55,515.60

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Solution

The fourth proportional to 114,661.80, 171,944.10 and 55,515.60 is: 83,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,661.80 : 171,944.10 = 55,515.60 : x
  2. Step 2: Convert to fraction form
    114,661.80/171,944.10 = 55,515.60/x
  3. Step 3: Cross multiply
    114,661.80x = 171,944.10 × 55,515.60
  4. Step 4: Simplify right side
    114,661.80x = 9,545,579,877.96
  5. Step 5: Solve for x
    x = 9,545,579,877.96/114,661.80
  6. Step 6: Final answer
    x = 83,249.87

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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.