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Finding the Fourth Proportional to 234,955.62, 323,993.66 and 139,443.86

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Solution

The fourth proportional to 234,955.62, 323,993.66 and 139,443.86 is: 192,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,955.62 : 323,993.66 = 139,443.86 : x
  2. Step 2: Convert to fraction form
    234,955.62/323,993.66 = 139,443.86/x
  3. Step 3: Cross multiply
    234,955.62x = 323,993.66 × 139,443.86
  4. Step 4: Simplify right side
    234,955.62x = 45,178,926,678.69
  5. Step 5: Solve for x
    x = 45,178,926,678.69/234,955.62
  6. Step 6: Final answer
    x = 192,287.07

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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.