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Finding the Fourth Proportional to 146,554.80, 219,846.12 and 39,940.08

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Solution

The fourth proportional to 146,554.80, 219,846.12 and 39,940.08 is: 59,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,554.80 : 219,846.12 = 39,940.08 : x
  2. Step 2: Convert to fraction form
    146,554.80/219,846.12 = 39,940.08/x
  3. Step 3: Cross multiply
    146,554.80x = 219,846.12 × 39,940.08
  4. Step 4: Simplify right side
    146,554.80x = 8,780,671,620.49
  5. Step 5: Solve for x
    x = 8,780,671,620.49/146,554.80
  6. Step 6: Final answer
    x = 59,913.91

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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.