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Finding the Fourth Proportional to 328,694.83, 493,043.70 and 104,056.39

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Solution

The fourth proportional to 328,694.83, 493,043.70 and 104,056.39 is: 156,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,694.83 : 493,043.70 = 104,056.39 : x
  2. Step 2: Convert to fraction form
    328,694.83/493,043.70 = 104,056.39/x
  3. Step 3: Cross multiply
    328,694.83x = 493,043.70 × 104,056.39
  4. Step 4: Simplify right side
    328,694.83x = 51,304,345,069.02
  5. Step 5: Solve for x
    x = 51,304,345,069.02/328,694.83
  6. Step 6: Final answer
    x = 156,085.04

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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.