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Finding the Fourth Proportional to 119,465.62, 164,859.52 and 65,015.48

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Solution

The fourth proportional to 119,465.62, 164,859.52 and 65,015.48 is: 89,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,465.62 : 164,859.52 = 65,015.48 : x
  2. Step 2: Convert to fraction form
    119,465.62/164,859.52 = 65,015.48/x
  3. Step 3: Cross multiply
    119,465.62x = 164,859.52 × 65,015.48
  4. Step 4: Simplify right side
    119,465.62x = 10,718,420,825.37
  5. Step 5: Solve for x
    x = 10,718,420,825.37/119,465.62
  6. Step 6: Final answer
    x = 89,719.71

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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.