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Finding the Fourth Proportional to 132,685.40, 199,028.10 and 130,498.40

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Solution

The fourth proportional to 132,685.40, 199,028.10 and 130,498.40 is: 195,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,685.40 : 199,028.10 = 130,498.40 : x
  2. Step 2: Convert to fraction form
    132,685.40/199,028.10 = 130,498.40/x
  3. Step 3: Cross multiply
    132,685.40x = 199,028.10 × 130,498.40
  4. Step 4: Simplify right side
    132,685.40x = 25,972,848,605.04
  5. Step 5: Solve for x
    x = 25,972,848,605.04/132,685.40
  6. Step 6: Final answer
    x = 195,747.60

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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.