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Finding the Fourth Proportional to 312,426.10, 468,529.80 and 162,616.60

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Solution

The fourth proportional to 312,426.10, 468,529.80 and 162,616.60 is: 243,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,426.10 : 468,529.80 = 162,616.60 : x
  2. Step 2: Convert to fraction form
    312,426.10/468,529.80 = 162,616.60/x
  3. Step 3: Cross multiply
    312,426.10x = 468,529.80 × 162,616.60
  4. Step 4: Simplify right side
    312,426.10x = 76,190,723,074.68
  5. Step 5: Solve for x
    x = 76,190,723,074.68/312,426.10
  6. Step 6: Final answer
    x = 243,867.98

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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.