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Finding the Fourth Proportional to 221,654.40, 332,690.40 and 116,548.80

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Solution

The fourth proportional to 221,654.40, 332,690.40 and 116,548.80 is: 174,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,654.40 : 332,690.40 = 116,548.80 : x
  2. Step 2: Convert to fraction form
    221,654.40/332,690.40 = 116,548.80/x
  3. Step 3: Cross multiply
    221,654.40x = 332,690.40 × 116,548.80
  4. Step 4: Simplify right side
    221,654.40x = 38,774,666,891.52
  5. Step 5: Solve for x
    x = 38,774,666,891.52/221,654.40
  6. Step 6: Final answer
    x = 174,932.99

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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.