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Finding the Fourth Proportional to 76,469.70, 114,485.85 and 76,469.70

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Solution

The fourth proportional to 76,469.70, 114,485.85 and 76,469.70 is: 114,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,469.70 : 114,485.85 = 76,469.70 : x
  2. Step 2: Convert to fraction form
    76,469.70/114,485.85 = 76,469.70/x
  3. Step 3: Cross multiply
    76,469.70x = 114,485.85 × 76,469.70
  4. Step 4: Simplify right side
    76,469.70x = 8,754,698,603.75
  5. Step 5: Solve for x
    x = 8,754,698,603.75/76,469.70
  6. Step 6: Final answer
    x = 114,485.85

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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.