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Finding the Fourth Proportional to 143,471.58, 215,199.06 and 54,734.05

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Solution

The fourth proportional to 143,471.58, 215,199.06 and 54,734.05 is: 82,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,471.58 : 215,199.06 = 54,734.05 : x
  2. Step 2: Convert to fraction form
    143,471.58/215,199.06 = 54,734.05/x
  3. Step 3: Cross multiply
    143,471.58x = 215,199.06 × 54,734.05
  4. Step 4: Simplify right side
    143,471.58x = 11,778,716,109.99
  5. Step 5: Solve for x
    x = 11,778,716,109.99/143,471.58
  6. Step 6: Final answer
    x = 82,097.90

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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.