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Finding the Fourth Proportional to 136,699.68, 205,060.22 and 36,858.34

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Solution

The fourth proportional to 136,699.68, 205,060.22 and 36,858.34 is: 55,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,699.68 : 205,060.22 = 36,858.34 : x
  2. Step 2: Convert to fraction form
    136,699.68/205,060.22 = 36,858.34/x
  3. Step 3: Cross multiply
    136,699.68x = 205,060.22 × 36,858.34
  4. Step 4: Simplify right side
    136,699.68x = 7,558,179,309.23
  5. Step 5: Solve for x
    x = 7,558,179,309.23/136,699.68
  6. Step 6: Final answer
    x = 55,290.40

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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.