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Finding the Fourth Proportional to 331,684.59, 457,720.95 and 188,441.58

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Solution

The fourth proportional to 331,684.59, 457,720.95 and 188,441.58 is: 260,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,684.59 : 457,720.95 = 188,441.58 : x
  2. Step 2: Convert to fraction form
    331,684.59/457,720.95 = 188,441.58/x
  3. Step 3: Cross multiply
    331,684.59x = 457,720.95 × 188,441.58
  4. Step 4: Simplify right side
    331,684.59x = 86,253,659,017.10
  5. Step 5: Solve for x
    x = 86,253,659,017.10/331,684.59
  6. Step 6: Final answer
    x = 260,047.23

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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.