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Finding the Fourth Proportional to 328,796.34, 493,268.22 and 104,155.80

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Solution

The fourth proportional to 328,796.34, 493,268.22 and 104,155.80 is: 156,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,796.34 : 493,268.22 = 104,155.80 : x
  2. Step 2: Convert to fraction form
    328,796.34/493,268.22 = 104,155.80/x
  3. Step 3: Cross multiply
    328,796.34x = 493,268.22 × 104,155.80
  4. Step 4: Simplify right side
    328,796.34x = 51,376,746,068.68
  5. Step 5: Solve for x
    x = 51,376,746,068.68/328,796.34
  6. Step 6: Final answer
    x = 156,257.05

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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.