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Finding the Fourth Proportional to 339,426.74, 509,205.72 and 114,823.70

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Solution

The fourth proportional to 339,426.74, 509,205.72 and 114,823.70 is: 172,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,426.74 : 509,205.72 = 114,823.70 : x
  2. Step 2: Convert to fraction form
    339,426.74/509,205.72 = 114,823.70/x
  3. Step 3: Cross multiply
    339,426.74x = 509,205.72 × 114,823.70
  4. Step 4: Simplify right side
    339,426.74x = 58,468,884,831.56
  5. Step 5: Solve for x
    x = 58,468,884,831.56/339,426.74
  6. Step 6: Final answer
    x = 172,257.75

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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.