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Finding the Fourth Proportional to 235,291.92, 352,959.03 and 66,813.90

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Solution

The fourth proportional to 235,291.92, 352,959.03 and 66,813.90 is: 100,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,291.92 : 352,959.03 = 66,813.90 : x
  2. Step 2: Convert to fraction form
    235,291.92/352,959.03 = 66,813.90/x
  3. Step 3: Cross multiply
    235,291.92x = 352,959.03 × 66,813.90
  4. Step 4: Simplify right side
    235,291.92x = 23,582,569,334.52
  5. Step 5: Solve for x
    x = 23,582,569,334.52/235,291.92
  6. Step 6: Final answer
    x = 100,226.86

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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.