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Finding the Fourth Proportional to 439,522.80, 659,245.80 and 144,034.80

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Solution

The fourth proportional to 439,522.80, 659,245.80 and 144,034.80 is: 216,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,522.80 : 659,245.80 = 144,034.80 : x
  2. Step 2: Convert to fraction form
    439,522.80/659,245.80 = 144,034.80/x
  3. Step 3: Cross multiply
    439,522.80x = 659,245.80 × 144,034.80
  4. Step 4: Simplify right side
    439,522.80x = 94,954,336,953.84
  5. Step 5: Solve for x
    x = 94,954,336,953.84/439,522.80
  6. Step 6: Final answer
    x = 216,039.62

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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.