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Finding the Fourth Proportional to 331,445.16, 457,372.79 and 195,447.93

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Solution

The fourth proportional to 331,445.16, 457,372.79 and 195,447.93 is: 269,705.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,445.16 : 457,372.79 = 195,447.93 : x
  2. Step 2: Convert to fraction form
    331,445.16/457,372.79 = 195,447.93/x
  3. Step 3: Cross multiply
    331,445.16x = 457,372.79 × 195,447.93
  4. Step 4: Simplify right side
    331,445.16x = 89,392,564,066.59
  5. Step 5: Solve for x
    x = 89,392,564,066.59/331,445.16
  6. Step 6: Final answer
    x = 269,705.44

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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.