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Finding the Fourth Proportional to 321,606.65, 482,433.20 and 84,946.25

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Solution

The fourth proportional to 321,606.65, 482,433.20 and 84,946.25 is: 127,425.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,606.65 : 482,433.20 = 84,946.25 : x
  2. Step 2: Convert to fraction form
    321,606.65/482,433.20 = 84,946.25/x
  3. Step 3: Cross multiply
    321,606.65x = 482,433.20 × 84,946.25
  4. Step 4: Simplify right side
    321,606.65x = 40,980,891,215.50
  5. Step 5: Solve for x
    x = 40,980,891,215.50/321,606.65
  6. Step 6: Final answer
    x = 127,425.51

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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.