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Finding the Fourth Proportional to 235,110.75, 352,618.95 and 115,116

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Solution

The fourth proportional to 235,110.75, 352,618.95 and 115,116 is: 172,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,110.75 : 352,618.95 = 115,116 : x
  2. Step 2: Convert to fraction form
    235,110.75/352,618.95 = 115,116/x
  3. Step 3: Cross multiply
    235,110.75x = 352,618.95 × 115,116
  4. Step 4: Simplify right side
    235,110.75x = 40,592,083,048.20
  5. Step 5: Solve for x
    x = 40,592,083,048.20/235,110.75
  6. Step 6: Final answer
    x = 172,650.90

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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.