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Finding the Fourth Proportional to 133,222.70, 183,841.84 and 72,795.42

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Solution

The fourth proportional to 133,222.70, 183,841.84 and 72,795.42 is: 100,454.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,222.70 : 183,841.84 = 72,795.42 : x
  2. Step 2: Convert to fraction form
    133,222.70/183,841.84 = 72,795.42/x
  3. Step 3: Cross multiply
    133,222.70x = 183,841.84 × 72,795.42
  4. Step 4: Simplify right side
    133,222.70x = 13,382,843,956.37
  5. Step 5: Solve for x
    x = 13,382,843,956.37/133,222.70
  6. Step 6: Final answer
    x = 100,454.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.