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Finding the Fourth Proportional to 423,563.04, 635,468.90 and 170,713.64

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Solution

The fourth proportional to 423,563.04, 635,468.90 and 170,713.64 is: 256,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,563.04 : 635,468.90 = 170,713.64 : x
  2. Step 2: Convert to fraction form
    423,563.04/635,468.90 = 170,713.64/x
  3. Step 3: Cross multiply
    423,563.04x = 635,468.90 × 170,713.64
  4. Step 4: Simplify right side
    423,563.04x = 108,483,209,760.90
  5. Step 5: Solve for x
    x = 108,483,209,760.90/423,563.04
  6. Step 6: Final answer
    x = 256,120.58

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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.