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Finding the Fourth Proportional to 323,744.10, 485,616.15 and 166,280.10

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Solution

The fourth proportional to 323,744.10, 485,616.15 and 166,280.10 is: 249,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,744.10 : 485,616.15 = 166,280.10 : x
  2. Step 2: Convert to fraction form
    323,744.10/485,616.15 = 166,280.10/x
  3. Step 3: Cross multiply
    323,744.10x = 485,616.15 × 166,280.10
  4. Step 4: Simplify right side
    323,744.10x = 80,748,301,983.62
  5. Step 5: Solve for x
    x = 80,748,301,983.62/323,744.10
  6. Step 6: Final answer
    x = 249,420.15

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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.