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Finding the Fourth Proportional to 117,223.47, 161,750.12 and 69,469.11

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Solution

The fourth proportional to 117,223.47, 161,750.12 and 69,469.11 is: 95,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,223.47 : 161,750.12 = 69,469.11 : x
  2. Step 2: Convert to fraction form
    117,223.47/161,750.12 = 69,469.11/x
  3. Step 3: Cross multiply
    117,223.47x = 161,750.12 × 69,469.11
  4. Step 4: Simplify right side
    117,223.47x = 11,236,636,531.45
  5. Step 5: Solve for x
    x = 11,236,636,531.45/117,223.47
  6. Step 6: Final answer
    x = 95,856.54

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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.