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Finding the Fourth Proportional to 331,693.21, 457,737.99 and 188,461.11

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Solution

The fourth proportional to 331,693.21, 457,737.99 and 188,461.11 is: 260,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,693.21 : 457,737.99 = 188,461.11 : x
  2. Step 2: Convert to fraction form
    331,693.21/457,737.99 = 188,461.11/x
  3. Step 3: Cross multiply
    331,693.21x = 457,737.99 × 188,461.11
  4. Step 4: Simplify right side
    331,693.21x = 86,265,810,694.36
  5. Step 5: Solve for x
    x = 86,265,810,694.36/331,693.21
  6. Step 6: Final answer
    x = 260,077.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.