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Finding the Fourth Proportional to 235,628.70, 352,924.65 and 209,363.10

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Solution

The fourth proportional to 235,628.70, 352,924.65 and 209,363.10 is: 313,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,628.70 : 352,924.65 = 209,363.10 : x
  2. Step 2: Convert to fraction form
    235,628.70/352,924.65 = 209,363.10/x
  3. Step 3: Cross multiply
    235,628.70x = 352,924.65 × 209,363.10
  4. Step 4: Simplify right side
    235,628.70x = 73,889,398,790.42
  5. Step 5: Solve for x
    x = 73,889,398,790.42/235,628.70
  6. Step 6: Final answer
    x = 313,584.04

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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.