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Finding the Fourth Proportional to 221,930.40, 333,104.40 and 116,824.80

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Solution

The fourth proportional to 221,930.40, 333,104.40 and 116,824.80 is: 175,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,930.40 : 333,104.40 = 116,824.80 : x
  2. Step 2: Convert to fraction form
    221,930.40/333,104.40 = 116,824.80/x
  3. Step 3: Cross multiply
    221,930.40x = 333,104.40 × 116,824.80
  4. Step 4: Simplify right side
    221,930.40x = 38,914,854,909.12
  5. Step 5: Solve for x
    x = 38,914,854,909.12/221,930.40
  6. Step 6: Final answer
    x = 175,347.11

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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.