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Finding the Fourth Proportional to 201,846.30, 303,425.55 and 172,977.90

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Solution

The fourth proportional to 201,846.30, 303,425.55 and 172,977.90 is: 260,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,846.30 : 303,425.55 = 172,977.90 : x
  2. Step 2: Convert to fraction form
    201,846.30/303,425.55 = 172,977.90/x
  3. Step 3: Cross multiply
    201,846.30x = 303,425.55 × 172,977.90
  4. Step 4: Simplify right side
    201,846.30x = 52,485,914,445.35
  5. Step 5: Solve for x
    x = 52,485,914,445.35/201,846.30
  6. Step 6: Final answer
    x = 260,029.11

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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.