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Finding the Fourth Proportional to 221,948.89, 333,172.11 and 88,921.89

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Solution

The fourth proportional to 221,948.89, 333,172.11 and 88,921.89 is: 133,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,948.89 : 333,172.11 = 88,921.89 : x
  2. Step 2: Convert to fraction form
    221,948.89/333,172.11 = 88,921.89/x
  3. Step 3: Cross multiply
    221,948.89x = 333,172.11 × 88,921.89
  4. Step 4: Simplify right side
    221,948.89x = 29,626,293,716.49
  5. Step 5: Solve for x
    x = 29,626,293,716.49/221,948.89
  6. Step 6: Final answer
    x = 133,482.50

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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.