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Finding the Fourth Proportional to 132,530.38, 198,859.35 and 65,976.32

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Solution

The fourth proportional to 132,530.38, 198,859.35 and 65,976.32 is: 98,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.38 : 198,859.35 = 65,976.32 : x
  2. Step 2: Convert to fraction form
    132,530.38/198,859.35 = 65,976.32/x
  3. Step 3: Cross multiply
    132,530.38x = 198,859.35 × 65,976.32
  4. Step 4: Simplify right side
    132,530.38x = 13,120,008,110.59
  5. Step 5: Solve for x
    x = 13,120,008,110.59/132,530.38
  6. Step 6: Final answer
    x = 98,996.23

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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.