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Finding the Fourth Proportional to 294,876.97, 442,315.91 and 126,384.11

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Solution

The fourth proportional to 294,876.97, 442,315.91 and 126,384.11 is: 189,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,876.97 : 442,315.91 = 126,384.11 : x
  2. Step 2: Convert to fraction form
    294,876.97/442,315.91 = 126,384.11/x
  3. Step 3: Cross multiply
    294,876.97x = 442,315.91 × 126,384.11
  4. Step 4: Simplify right side
    294,876.97x = 55,901,702,387.26
  5. Step 5: Solve for x
    x = 55,901,702,387.26/294,876.97
  6. Step 6: Final answer
    x = 189,576.36

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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.