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Finding the Fourth Proportional to 357,654.11, 536,397.94 and 133,120.29

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Solution

The fourth proportional to 357,654.11, 536,397.94 and 133,120.29 is: 199,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,654.11 : 536,397.94 = 133,120.29 : x
  2. Step 2: Convert to fraction form
    357,654.11/536,397.94 = 133,120.29/x
  3. Step 3: Cross multiply
    357,654.11x = 536,397.94 × 133,120.29
  4. Step 4: Simplify right side
    357,654.11x = 71,405,449,997.48
  5. Step 5: Solve for x
    x = 71,405,449,997.48/357,654.11
  6. Step 6: Final answer
    x = 199,649.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.