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Finding the Fourth Proportional to 412,624.60, 618,870.46 and 113,035.12

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Solution

The fourth proportional to 412,624.60, 618,870.46 and 113,035.12 is: 169,534.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,624.60 : 618,870.46 = 113,035.12 : x
  2. Step 2: Convert to fraction form
    412,624.60/618,870.46 = 113,035.12/x
  3. Step 3: Cross multiply
    412,624.60x = 618,870.46 × 113,035.12
  4. Step 4: Simplify right side
    412,624.60x = 69,954,096,710.56
  5. Step 5: Solve for x
    x = 69,954,096,710.56/412,624.60
  6. Step 6: Final answer
    x = 169,534.48

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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.