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Finding the Fourth Proportional to 147,015.38, 220,463.70 and 57,010.70

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Solution

The fourth proportional to 147,015.38, 220,463.70 and 57,010.70 is: 85,493.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.38 : 220,463.70 = 57,010.70 : x
  2. Step 2: Convert to fraction form
    147,015.38/220,463.70 = 57,010.70/x
  3. Step 3: Cross multiply
    147,015.38x = 220,463.70 × 57,010.70
  4. Step 4: Simplify right side
    147,015.38x = 12,568,789,861.59
  5. Step 5: Solve for x
    x = 12,568,789,861.59/147,015.38
  6. Step 6: Final answer
    x = 85,493.03

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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.