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Finding the Fourth Proportional to 116,871.52, 161,302.96 and 112,983.52

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Solution

The fourth proportional to 116,871.52, 161,302.96 and 112,983.52 is: 155,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,871.52 : 161,302.96 = 112,983.52 : x
  2. Step 2: Convert to fraction form
    116,871.52/161,302.96 = 112,983.52/x
  3. Step 3: Cross multiply
    116,871.52x = 161,302.96 × 112,983.52
  4. Step 4: Simplify right side
    116,871.52x = 18,224,576,207.22
  5. Step 5: Solve for x
    x = 18,224,576,207.22/116,871.52
  6. Step 6: Final answer
    x = 155,936.85

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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.