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Finding the Fourth Proportional to 240,082.99, 360,142.71 and 71,590.13

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Solution

The fourth proportional to 240,082.99, 360,142.71 and 71,590.13 is: 107,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,082.99 : 360,142.71 = 71,590.13 : x
  2. Step 2: Convert to fraction form
    240,082.99/360,142.71 = 71,590.13/x
  3. Step 3: Cross multiply
    240,082.99x = 360,142.71 × 71,590.13
  4. Step 4: Simplify right side
    240,082.99x = 25,782,662,708.81
  5. Step 5: Solve for x
    x = 25,782,662,708.81/240,082.99
  6. Step 6: Final answer
    x = 107,390.63

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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.