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Finding the Fourth Proportional to 118,948.70, 164,141.03 and 65,232.54

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Solution

The fourth proportional to 118,948.70, 164,141.03 and 65,232.54 is: 90,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,948.70 : 164,141.03 = 65,232.54 : x
  2. Step 2: Convert to fraction form
    118,948.70/164,141.03 = 65,232.54/x
  3. Step 3: Cross multiply
    118,948.70x = 164,141.03 × 65,232.54
  4. Step 4: Simplify right side
    118,948.70x = 10,707,336,468.20
  5. Step 5: Solve for x
    x = 10,707,336,468.20/118,948.70
  6. Step 6: Final answer
    x = 90,016.42

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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.