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Finding the Fourth Proportional to 143,990.01, 215,984.09 and 49,174.44

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Solution

The fourth proportional to 143,990.01, 215,984.09 and 49,174.44 is: 73,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,990.01 : 215,984.09 = 49,174.44 : x
  2. Step 2: Convert to fraction form
    143,990.01/215,984.09 = 49,174.44/x
  3. Step 3: Cross multiply
    143,990.01x = 215,984.09 × 49,174.44
  4. Step 4: Simplify right side
    143,990.01x = 10,620,896,674.66
  5. Step 5: Solve for x
    x = 10,620,896,674.66/143,990.01
  6. Step 6: Final answer
    x = 73,761.35

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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.