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Finding the Fourth Proportional to 114,745.40, 171,995.04 and 55,499.57

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Solution

The fourth proportional to 114,745.40, 171,995.04 and 55,499.57 is: 83,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,745.40 : 171,995.04 = 55,499.57 : x
  2. Step 2: Convert to fraction form
    114,745.40/171,995.04 = 55,499.57/x
  3. Step 3: Cross multiply
    114,745.40x = 171,995.04 × 55,499.57
  4. Step 4: Simplify right side
    114,745.40x = 9,545,649,902.16
  5. Step 5: Solve for x
    x = 9,545,649,902.16/114,745.40
  6. Step 6: Final answer
    x = 83,189.83

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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.