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Finding the Fourth Proportional to 331,543.88, 457,530.55 and 180,640.88

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Solution

The fourth proportional to 331,543.88, 457,530.55 and 180,640.88 is: 249,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,543.88 : 457,530.55 = 180,640.88 : x
  2. Step 2: Convert to fraction form
    331,543.88/457,530.55 = 180,640.88/x
  3. Step 3: Cross multiply
    331,543.88x = 457,530.55 × 180,640.88
  4. Step 4: Simplify right side
    331,543.88x = 82,648,718,439.63
  5. Step 5: Solve for x
    x = 82,648,718,439.63/331,543.88
  6. Step 6: Final answer
    x = 249,284.41

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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.