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Finding the Fourth Proportional to 221,631.40, 332,655.90 and 116,525.80

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Solution

The fourth proportional to 221,631.40, 332,655.90 and 116,525.80 is: 174,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,631.40 : 332,655.90 = 116,525.80 : x
  2. Step 2: Convert to fraction form
    221,631.40/332,655.90 = 116,525.80/x
  3. Step 3: Cross multiply
    221,631.40x = 332,655.90 × 116,525.80
  4. Step 4: Simplify right side
    221,631.40x = 38,762,994,872.22
  5. Step 5: Solve for x
    x = 38,762,994,872.22/221,631.40
  6. Step 6: Final answer
    x = 174,898.48

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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.