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Finding the Fourth Proportional to 82,052.70, 123,004.80 and 57,104.70

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Solution

The fourth proportional to 82,052.70, 123,004.80 and 57,104.70 is: 85,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,052.70 : 123,004.80 = 57,104.70 : x
  2. Step 2: Convert to fraction form
    82,052.70/123,004.80 = 57,104.70/x
  3. Step 3: Cross multiply
    82,052.70x = 123,004.80 × 57,104.70
  4. Step 4: Simplify right side
    82,052.70x = 7,024,152,202.56
  5. Step 5: Solve for x
    x = 7,024,152,202.56/82,052.70
  6. Step 6: Final answer
    x = 85,605.38

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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.