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Finding the Fourth Proportional to 322,871.67, 484,307.91 and 154,352.39

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Solution

The fourth proportional to 322,871.67, 484,307.91 and 154,352.39 is: 231,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,871.67 : 484,307.91 = 154,352.39 : x
  2. Step 2: Convert to fraction form
    322,871.67/484,307.91 = 154,352.39/x
  3. Step 3: Cross multiply
    322,871.67x = 484,307.91 × 154,352.39
  4. Step 4: Simplify right side
    322,871.67x = 74,754,080,982.87
  5. Step 5: Solve for x
    x = 74,754,080,982.87/322,871.67
  6. Step 6: Final answer
    x = 231,528.77

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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.