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Finding the Fourth Proportional to 75,287.99, 103,898.49 and 41,299.72

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Solution

The fourth proportional to 75,287.99, 103,898.49 and 41,299.72 is: 56,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287.99 : 103,898.49 = 41,299.72 : x
  2. Step 2: Convert to fraction form
    75,287.99/103,898.49 = 41,299.72/x
  3. Step 3: Cross multiply
    75,287.99x = 103,898.49 × 41,299.72
  4. Step 4: Simplify right side
    75,287.99x = 4,290,978,545.42
  5. Step 5: Solve for x
    x = 4,290,978,545.42/75,287.99
  6. Step 6: Final answer
    x = 56,994.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.