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Finding the Fourth Proportional to 136,697.85, 205,028.75 and 40,633.01

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Solution

The fourth proportional to 136,697.85, 205,028.75 and 40,633.01 is: 60,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,697.85 : 205,028.75 = 40,633.01 : x
  2. Step 2: Convert to fraction form
    136,697.85/205,028.75 = 40,633.01/x
  3. Step 3: Cross multiply
    136,697.85x = 205,028.75 × 40,633.01
  4. Step 4: Simplify right side
    136,697.85x = 8,330,935,249.04
  5. Step 5: Solve for x
    x = 8,330,935,249.04/136,697.85
  6. Step 6: Final answer
    x = 60,944.16

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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.