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Finding the Fourth Proportional to 322,711.60, 484,002.60 and 154,231.60

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Solution

The fourth proportional to 322,711.60, 484,002.60 and 154,231.60 is: 231,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,711.60 : 484,002.60 = 154,231.60 : x
  2. Step 2: Convert to fraction form
    322,711.60/484,002.60 = 154,231.60/x
  3. Step 3: Cross multiply
    322,711.60x = 484,002.60 × 154,231.60
  4. Step 4: Simplify right side
    322,711.60x = 74,648,495,402.16
  5. Step 5: Solve for x
    x = 74,648,495,402.16/322,711.60
  6. Step 6: Final answer
    x = 231,316.43

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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.