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Finding the Fourth Proportional to 406,757.95, 610,168.11 and 136,887.43

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Solution

The fourth proportional to 406,757.95, 610,168.11 and 136,887.43 is: 205,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,757.95 : 610,168.11 = 136,887.43 : x
  2. Step 2: Convert to fraction form
    406,757.95/610,168.11 = 136,887.43/x
  3. Step 3: Cross multiply
    406,757.95x = 610,168.11 × 136,887.43
  4. Step 4: Simplify right side
    406,757.95x = 83,524,344,445.86
  5. Step 5: Solve for x
    x = 83,524,344,445.86/406,757.95
  6. Step 6: Final answer
    x = 205,341.64

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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.