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Finding the Fourth Proportional to 132,023.40, 198,035.10 and 79,535.40

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Solution

The fourth proportional to 132,023.40, 198,035.10 and 79,535.40 is: 119,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,023.40 : 198,035.10 = 79,535.40 : x
  2. Step 2: Convert to fraction form
    132,023.40/198,035.10 = 79,535.40/x
  3. Step 3: Cross multiply
    132,023.40x = 198,035.10 × 79,535.40
  4. Step 4: Simplify right side
    132,023.40x = 15,750,800,892.54
  5. Step 5: Solve for x
    x = 15,750,800,892.54/132,023.40
  6. Step 6: Final answer
    x = 119,303.10

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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.