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Finding the Fourth Proportional to 321,908.20, 482,927.10 and 111,502.60

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Solution

The fourth proportional to 321,908.20, 482,927.10 and 111,502.60 is: 167,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,908.20 : 482,927.10 = 111,502.60 : x
  2. Step 2: Convert to fraction form
    321,908.20/482,927.10 = 111,502.60/x
  3. Step 3: Cross multiply
    321,908.20x = 482,927.10 × 111,502.60
  4. Step 4: Simplify right side
    321,908.20x = 53,847,627,260.46
  5. Step 5: Solve for x
    x = 53,847,627,260.46/321,908.20
  6. Step 6: Final answer
    x = 167,276.35

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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.