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Finding the Fourth Proportional to 251,486.92, 347,022.86 and 144,050.55

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Solution

The fourth proportional to 251,486.92, 347,022.86 and 144,050.55 is: 198,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,486.92 : 347,022.86 = 144,050.55 : x
  2. Step 2: Convert to fraction form
    251,486.92/347,022.86 = 144,050.55/x
  3. Step 3: Cross multiply
    251,486.92x = 347,022.86 × 144,050.55
  4. Step 4: Simplify right side
    251,486.92x = 49,988,833,845.57
  5. Step 5: Solve for x
    x = 49,988,833,845.57/251,486.92
  6. Step 6: Final answer
    x = 198,773.10

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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.