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Finding the Fourth Proportional to 328,671, 493,080.34 and 104,044.90

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Solution

The fourth proportional to 328,671, 493,080.34 and 104,044.90 is: 156,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,671 : 493,080.34 = 104,044.90 : x
  2. Step 2: Convert to fraction form
    328,671/493,080.34 = 104,044.90/x
  3. Step 3: Cross multiply
    328,671x = 493,080.34 × 104,044.90
  4. Step 4: Simplify right side
    328,671x = 51,302,494,667.27
  5. Step 5: Solve for x
    x = 51,302,494,667.27/328,671
  6. Step 6: Final answer
    x = 156,090.72

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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.