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Finding the Fourth Proportional to 423,757.35, 635,636.01 and 157,584.87

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Solution

The fourth proportional to 423,757.35, 635,636.01 and 157,584.87 is: 236,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,757.35 : 635,636.01 = 157,584.87 : x
  2. Step 2: Convert to fraction form
    423,757.35/635,636.01 = 157,584.87/x
  3. Step 3: Cross multiply
    423,757.35x = 635,636.01 × 157,584.87
  4. Step 4: Simplify right side
    423,757.35x = 100,166,618,003.17
  5. Step 5: Solve for x
    x = 100,166,618,003.17/423,757.35
  6. Step 6: Final answer
    x = 236,377.30

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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.