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Finding the Fourth Proportional to 132,036.70, 198,113.37 and 53,304.70

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Solution

The fourth proportional to 132,036.70, 198,113.37 and 53,304.70 is: 79,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,036.70 : 198,113.37 = 53,304.70 : x
  2. Step 2: Convert to fraction form
    132,036.70/198,113.37 = 53,304.70/x
  3. Step 3: Cross multiply
    132,036.70x = 198,113.37 × 53,304.70
  4. Step 4: Simplify right side
    132,036.70x = 10,560,373,753.84
  5. Step 5: Solve for x
    x = 10,560,373,753.84/132,036.70
  6. Step 6: Final answer
    x = 79,980.59

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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.