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Finding the Fourth Proportional to 235,474.80, 353,209.37 and 57,983.55

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Solution

The fourth proportional to 235,474.80, 353,209.37 and 57,983.55 is: 86,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,474.80 : 353,209.37 = 57,983.55 : x
  2. Step 2: Convert to fraction form
    235,474.80/353,209.37 = 57,983.55/x
  3. Step 3: Cross multiply
    235,474.80x = 353,209.37 × 57,983.55
  4. Step 4: Simplify right side
    235,474.80x = 20,480,332,875.95
  5. Step 5: Solve for x
    x = 20,480,332,875.95/235,474.80
  6. Step 6: Final answer
    x = 86,974.63

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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.