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Finding the Fourth Proportional to 414,573.39, 621,544.05 and 130,099.86

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Solution

The fourth proportional to 414,573.39, 621,544.05 and 130,099.86 is: 195,050.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,573.39 : 621,544.05 = 130,099.86 : x
  2. Step 2: Convert to fraction form
    414,573.39/621,544.05 = 130,099.86/x
  3. Step 3: Cross multiply
    414,573.39x = 621,544.05 × 130,099.86
  4. Step 4: Simplify right side
    414,573.39x = 80,862,793,888.83
  5. Step 5: Solve for x
    x = 80,862,793,888.83/414,573.39
  6. Step 6: Final answer
    x = 195,050.61

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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.