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Finding the Fourth Proportional to 323,730.10, 485,595.15 and 166,266.10

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Solution

The fourth proportional to 323,730.10, 485,595.15 and 166,266.10 is: 249,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,730.10 : 485,595.15 = 166,266.10 : x
  2. Step 2: Convert to fraction form
    323,730.10/485,595.15 = 166,266.10/x
  3. Step 3: Cross multiply
    323,730.10x = 485,595.15 × 166,266.10
  4. Step 4: Simplify right side
    323,730.10x = 80,738,011,769.42
  5. Step 5: Solve for x
    x = 80,738,011,769.42/323,730.10
  6. Step 6: Final answer
    x = 249,399.15

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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.