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Finding the Fourth Proportional to 423,699.02, 635,548.33 and 108,155.83

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Solution

The fourth proportional to 423,699.02, 635,548.33 and 108,155.83 is: 162,233.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,699.02 : 635,548.33 = 108,155.83 : x
  2. Step 2: Convert to fraction form
    423,699.02/635,548.33 = 108,155.83/x
  3. Step 3: Cross multiply
    423,699.02x = 635,548.33 × 108,155.83
  4. Step 4: Simplify right side
    423,699.02x = 68,738,255,682.59
  5. Step 5: Solve for x
    x = 68,738,255,682.59/423,699.02
  6. Step 6: Final answer
    x = 162,233.69

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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.