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Finding the Fourth Proportional to 235,206.69, 352,350.72 and 187,920.15

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Solution

The fourth proportional to 235,206.69, 352,350.72 and 187,920.15 is: 281,513.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,206.69 : 352,350.72 = 187,920.15 : x
  2. Step 2: Convert to fraction form
    235,206.69/352,350.72 = 187,920.15/x
  3. Step 3: Cross multiply
    235,206.69x = 352,350.72 × 187,920.15
  4. Step 4: Simplify right side
    235,206.69x = 66,213,800,155.01
  5. Step 5: Solve for x
    x = 66,213,800,155.01/235,206.69
  6. Step 6: Final answer
    x = 281,513.25

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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.