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Finding the Fourth Proportional to 423,692.58, 635,560.74 and 108,152.22

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Solution

The fourth proportional to 423,692.58, 635,560.74 and 108,152.22 is: 162,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,692.58 : 635,560.74 = 108,152.22 : x
  2. Step 2: Convert to fraction form
    423,692.58/635,560.74 = 108,152.22/x
  3. Step 3: Cross multiply
    423,692.58x = 635,560.74 × 108,152.22
  4. Step 4: Simplify right side
    423,692.58x = 68,737,304,975.84
  5. Step 5: Solve for x
    x = 68,737,304,975.84/423,692.58
  6. Step 6: Final answer
    x = 162,233.91

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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.