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Finding the Fourth Proportional to 423,692.08, 635,559.99 and 108,151.72

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Solution

The fourth proportional to 423,692.08, 635,559.99 and 108,151.72 is: 162,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,692.08 : 635,559.99 = 108,151.72 : x
  2. Step 2: Convert to fraction form
    423,692.08/635,559.99 = 108,151.72/x
  3. Step 3: Cross multiply
    423,692.08x = 635,559.99 × 108,151.72
  4. Step 4: Simplify right side
    423,692.08x = 68,736,906,081.68
  5. Step 5: Solve for x
    x = 68,736,906,081.68/423,692.08
  6. Step 6: Final answer
    x = 162,233.16

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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.