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Finding the Fourth Proportional to 132,530.50, 198,859.56 and 65,976.49

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Solution

The fourth proportional to 132,530.50, 198,859.56 and 65,976.49 is: 98,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.50 : 198,859.56 = 65,976.49 : x
  2. Step 2: Convert to fraction form
    132,530.50/198,859.56 = 65,976.49/x
  3. Step 3: Cross multiply
    132,530.50x = 198,859.56 × 65,976.49
  4. Step 4: Simplify right side
    132,530.50x = 13,120,055,771.74
  5. Step 5: Solve for x
    x = 13,120,055,771.74/132,530.50
  6. Step 6: Final answer
    x = 98,996.50

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1.5x scale

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.