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Finding the Fourth Proportional to 221,486.40, 332,326.80 and 103,096.80

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Solution

The fourth proportional to 221,486.40, 332,326.80 and 103,096.80 is: 154,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,486.40 : 332,326.80 = 103,096.80 : x
  2. Step 2: Convert to fraction form
    221,486.40/332,326.80 = 103,096.80/x
  3. Step 3: Cross multiply
    221,486.40x = 332,326.80 × 103,096.80
  4. Step 4: Simplify right side
    221,486.40x = 34,261,829,634.24
  5. Step 5: Solve for x
    x = 34,261,829,634.24/221,486.40
  6. Step 6: Final answer
    x = 154,690.44

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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.