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Finding the Fourth Proportional to 479,062.49, 718,471.11 and 142,024.37

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Solution

The fourth proportional to 479,062.49, 718,471.11 and 142,024.37 is: 213,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,062.49 : 718,471.11 = 142,024.37 : x
  2. Step 2: Convert to fraction form
    479,062.49/718,471.11 = 142,024.37/x
  3. Step 3: Cross multiply
    479,062.49x = 718,471.11 × 142,024.37
  4. Step 4: Simplify right side
    479,062.49x = 102,040,406,760.95
  5. Step 5: Solve for x
    x = 102,040,406,760.95/479,062.49
  6. Step 6: Final answer
    x = 213,000.20

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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.