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Finding the Fourth Proportional to 132,597.70, 198,579.97 and 76,319.51

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Solution

The fourth proportional to 132,597.70, 198,579.97 and 76,319.51 is: 114,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,597.70 : 198,579.97 = 76,319.51 : x
  2. Step 2: Convert to fraction form
    132,597.70/198,579.97 = 76,319.51/x
  3. Step 3: Cross multiply
    132,597.70x = 198,579.97 × 76,319.51
  4. Step 4: Simplify right side
    132,597.70x = 15,155,526,006.21
  5. Step 5: Solve for x
    x = 15,155,526,006.21/132,597.70
  6. Step 6: Final answer
    x = 114,297.05

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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.