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Finding the Fourth Proportional to 255,291.71, 352,349.79 and 147,861.71

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Solution

The fourth proportional to 255,291.71, 352,349.79 and 147,861.71 is: 204,076.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,291.71 : 352,349.79 = 147,861.71 : x
  2. Step 2: Convert to fraction form
    255,291.71/352,349.79 = 147,861.71/x
  3. Step 3: Cross multiply
    255,291.71x = 352,349.79 × 147,861.71
  4. Step 4: Simplify right side
    255,291.71x = 52,099,040,705.79
  5. Step 5: Solve for x
    x = 52,099,040,705.79/255,291.71
  6. Step 6: Final answer
    x = 204,076.51

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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.