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Finding the Fourth Proportional to 331,800.60, 457,865.10 and 188,540.76

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Solution

The fourth proportional to 331,800.60, 457,865.10 and 188,540.76 is: 260,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,800.60 : 457,865.10 = 188,540.76 : x
  2. Step 2: Convert to fraction form
    331,800.60/457,865.10 = 188,540.76/x
  3. Step 3: Cross multiply
    331,800.60x = 457,865.10 × 188,540.76
  4. Step 4: Simplify right side
    331,800.60x = 86,326,233,931.48
  5. Step 5: Solve for x
    x = 86,326,233,931.48/331,800.60
  6. Step 6: Final answer
    x = 260,175.04

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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.