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Finding the Fourth Proportional to 194,064.82, 290,555.34 and 104,998.84

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Solution

The fourth proportional to 194,064.82, 290,555.34 and 104,998.84 is: 157,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,064.82 : 290,555.34 = 104,998.84 : x
  2. Step 2: Convert to fraction form
    194,064.82/290,555.34 = 104,998.84/x
  3. Step 3: Cross multiply
    194,064.82x = 290,555.34 × 104,998.84
  4. Step 4: Simplify right side
    194,064.82x = 30,507,973,655.81
  5. Step 5: Solve for x
    x = 30,507,973,655.81/194,064.82
  6. Step 6: Final answer
    x = 157,205.07

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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.