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Finding the Fourth Proportional to 323,767.28, 485,456.51 and 166,303.28

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Solution

The fourth proportional to 323,767.28, 485,456.51 and 166,303.28 is: 249,355.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,767.28 : 485,456.51 = 166,303.28 : x
  2. Step 2: Convert to fraction form
    323,767.28/485,456.51 = 166,303.28/x
  3. Step 3: Cross multiply
    323,767.28x = 485,456.51 × 166,303.28
  4. Step 4: Simplify right side
    323,767.28x = 80,733,007,483.07
  5. Step 5: Solve for x
    x = 80,733,007,483.07/323,767.28
  6. Step 6: Final answer
    x = 249,355.06

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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.