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Finding the Fourth Proportional to 117,176.31, 161,703.41 and 63,461.43

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Solution

The fourth proportional to 117,176.31, 161,703.41 and 63,461.43 is: 87,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,176.31 : 161,703.41 = 63,461.43 : x
  2. Step 2: Convert to fraction form
    117,176.31/161,703.41 = 63,461.43/x
  3. Step 3: Cross multiply
    117,176.31x = 161,703.41 × 63,461.43
  4. Step 4: Simplify right side
    117,176.31x = 10,261,929,317.17
  5. Step 5: Solve for x
    x = 10,261,929,317.17/117,176.31
  6. Step 6: Final answer
    x = 87,576.83

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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.