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Finding the Fourth Proportional to 136,998.54, 205,104.15 and 101,219.22

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Solution

The fourth proportional to 136,998.54, 205,104.15 and 101,219.22 is: 151,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,998.54 : 205,104.15 = 101,219.22 : x
  2. Step 2: Convert to fraction form
    136,998.54/205,104.15 = 101,219.22/x
  3. Step 3: Cross multiply
    136,998.54x = 205,104.15 × 101,219.22
  4. Step 4: Simplify right side
    136,998.54x = 20,760,482,081.76
  5. Step 5: Solve for x
    x = 20,760,482,081.76/136,998.54
  6. Step 6: Final answer
    x = 151,537.98

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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.