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Finding the Fourth Proportional to 119,244.78, 164,554.48 and 65,529.78

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Solution

The fourth proportional to 119,244.78, 164,554.48 and 65,529.78 is: 90,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,244.78 : 164,554.48 = 65,529.78 : x
  2. Step 2: Convert to fraction form
    119,244.78/164,554.48 = 65,529.78/x
  3. Step 3: Cross multiply
    119,244.78x = 164,554.48 × 65,529.78
  4. Step 4: Simplify right side
    119,244.78x = 10,783,218,872.41
  5. Step 5: Solve for x
    x = 10,783,218,872.41/119,244.78
  6. Step 6: Final answer
    x = 90,429.27

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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.