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Finding the Fourth Proportional to 127,954, 176,576.52 and 71,365.42

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Solution

The fourth proportional to 127,954, 176,576.52 and 71,365.42 is: 98,484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,954 : 176,576.52 = 71,365.42 : x
  2. Step 2: Convert to fraction form
    127,954/176,576.52 = 71,365.42/x
  3. Step 3: Cross multiply
    127,954x = 176,576.52 × 71,365.42
  4. Step 4: Simplify right side
    127,954x = 12,601,457,511.94
  5. Step 5: Solve for x
    x = 12,601,457,511.94/127,954
  6. Step 6: Final answer
    x = 98,484.28

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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.