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Finding the Fourth Proportional to 247,761.11, 341,904.59 and 144,388.72

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Solution

The fourth proportional to 247,761.11, 341,904.59 and 144,388.72 is: 199,253.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,761.11 : 341,904.59 = 144,388.72 : x
  2. Step 2: Convert to fraction form
    247,761.11/341,904.59 = 144,388.72/x
  3. Step 3: Cross multiply
    247,761.11x = 341,904.59 × 144,388.72
  4. Step 4: Simplify right side
    247,761.11x = 49,367,166,359.12
  5. Step 5: Solve for x
    x = 49,367,166,359.12/247,761.11
  6. Step 6: Final answer
    x = 199,253.09

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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.