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Finding the Fourth Proportional to 221,447.70, 332,117.55 and 63,659.70

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Solution

The fourth proportional to 221,447.70, 332,117.55 and 63,659.70 is: 95,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,447.70 : 332,117.55 = 63,659.70 : x
  2. Step 2: Convert to fraction form
    221,447.70/332,117.55 = 63,659.70/x
  3. Step 3: Cross multiply
    221,447.70x = 332,117.55 × 63,659.70
  4. Step 4: Simplify right side
    221,447.70x = 21,142,503,597.74
  5. Step 5: Solve for x
    x = 21,142,503,597.74/221,447.70
  6. Step 6: Final answer
    x = 95,474.03

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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.