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Finding the Fourth Proportional to 323,520.15, 485,280.23 and 166,056.15

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Solution

The fourth proportional to 323,520.15, 485,280.23 and 166,056.15 is: 249,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,520.15 : 485,280.23 = 166,056.15 : x
  2. Step 2: Convert to fraction form
    323,520.15/485,280.23 = 166,056.15/x
  3. Step 3: Cross multiply
    323,520.15x = 485,280.23 × 166,056.15
  4. Step 4: Simplify right side
    323,520.15x = 80,583,765,834.63
  5. Step 5: Solve for x
    x = 80,583,765,834.63/323,520.15
  6. Step 6: Final answer
    x = 249,084.23

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1.5x scale

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.