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Finding the Fourth Proportional to 423,782.97, 635,617.89 and 157,507.35

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Solution

The fourth proportional to 423,782.97, 635,617.89 and 157,507.35 is: 236,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,782.97 : 635,617.89 = 157,507.35 : x
  2. Step 2: Convert to fraction form
    423,782.97/635,617.89 = 157,507.35/x
  3. Step 3: Cross multiply
    423,782.97x = 635,617.89 × 157,507.35
  4. Step 4: Simplify right side
    423,782.97x = 100,114,489,466.49
  5. Step 5: Solve for x
    x = 100,114,489,466.49/423,782.97
  6. Step 6: Final answer
    x = 236,240.00

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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.