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Finding the Fourth Proportional to 518,033.73, 777,155.70 and 162,965.18

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Solution

The fourth proportional to 518,033.73, 777,155.70 and 162,965.18 is: 244,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,033.73 : 777,155.70 = 162,965.18 : x
  2. Step 2: Convert to fraction form
    518,033.73/777,155.70 = 162,965.18/x
  3. Step 3: Cross multiply
    518,033.73x = 777,155.70 × 162,965.18
  4. Step 4: Simplify right side
    518,033.73x = 126,649,314,652.75
  5. Step 5: Solve for x
    x = 126,649,314,652.75/518,033.73
  6. Step 6: Final answer
    x = 244,480.83

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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.