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Finding the Fourth Proportional to 92,113.17, 138,083.46 and 83,896.12

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Solution

The fourth proportional to 92,113.17, 138,083.46 and 83,896.12 is: 125,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,113.17 : 138,083.46 = 83,896.12 : x
  2. Step 2: Convert to fraction form
    92,113.17/138,083.46 = 83,896.12/x
  3. Step 3: Cross multiply
    92,113.17x = 138,083.46 × 83,896.12
  4. Step 4: Simplify right side
    92,113.17x = 11,584,666,530.18
  5. Step 5: Solve for x
    x = 11,584,666,530.18/92,113.17
  6. Step 6: Final answer
    x = 125,765.58

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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.