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Finding the Fourth Proportional to 423,699.53, 635,549.08 and 108,156.33

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Solution

The fourth proportional to 423,699.53, 635,549.08 and 108,156.33 is: 162,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,699.53 : 635,549.08 = 108,156.33 : x
  2. Step 2: Convert to fraction form
    423,699.53/635,549.08 = 108,156.33/x
  3. Step 3: Cross multiply
    423,699.53x = 635,549.08 × 108,156.33
  4. Step 4: Simplify right side
    423,699.53x = 68,738,656,027.68
  5. Step 5: Solve for x
    x = 68,738,656,027.68/423,699.53
  6. Step 6: Final answer
    x = 162,234.44

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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.