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Finding the Fourth Proportional to 191,937.75, 287,673.15 and 135,794.04

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Solution

The fourth proportional to 191,937.75, 287,673.15 and 135,794.04 is: 203,525.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,937.75 : 287,673.15 = 135,794.04 : x
  2. Step 2: Convert to fraction form
    191,937.75/287,673.15 = 135,794.04/x
  3. Step 3: Cross multiply
    191,937.75x = 287,673.15 × 135,794.04
  4. Step 4: Simplify right side
    191,937.75x = 39,064,299,949.96
  5. Step 5: Solve for x
    x = 39,064,299,949.96/191,937.75
  6. Step 6: Final answer
    x = 203,525.88

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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.