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Finding the Fourth Proportional to 130,874.40, 196,603.20 and 125,560.80

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Solution

The fourth proportional to 130,874.40, 196,603.20 and 125,560.80 is: 188,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,874.40 : 196,603.20 = 125,560.80 : x
  2. Step 2: Convert to fraction form
    130,874.40/196,603.20 = 125,560.80/x
  3. Step 3: Cross multiply
    130,874.40x = 196,603.20 × 125,560.80
  4. Step 4: Simplify right side
    130,874.40x = 24,685,655,074.56
  5. Step 5: Solve for x
    x = 24,685,655,074.56/130,874.40
  6. Step 6: Final answer
    x = 188,620.96

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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.