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Finding the Fourth Proportional to 331,703.60, 457,751.09 and 188,463.83

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Solution

The fourth proportional to 331,703.60, 457,751.09 and 188,463.83 is: 260,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,703.60 : 457,751.09 = 188,463.83 : x
  2. Step 2: Convert to fraction form
    331,703.60/457,751.09 = 188,463.83/x
  3. Step 3: Cross multiply
    331,703.60x = 457,751.09 × 188,463.83
  4. Step 4: Simplify right side
    331,703.60x = 86,269,521,790.48
  5. Step 5: Solve for x
    x = 86,269,521,790.48/331,703.60
  6. Step 6: Final answer
    x = 260,080.15

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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.