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Finding the Fourth Proportional to 168,695.36, 253,354.08 and 133,858.88

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Solution

The fourth proportional to 168,695.36, 253,354.08 and 133,858.88 is: 201,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,695.36 : 253,354.08 = 133,858.88 : x
  2. Step 2: Convert to fraction form
    168,695.36/253,354.08 = 133,858.88/x
  3. Step 3: Cross multiply
    168,695.36x = 253,354.08 × 133,858.88
  4. Step 4: Simplify right side
    168,695.36x = 33,913,693,392.23
  5. Step 5: Solve for x
    x = 33,913,693,392.23/168,695.36
  6. Step 6: Final answer
    x = 201,035.13

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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.