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Finding the Fourth Proportional to 379,367.84, 569,090.06 and 123,189.69

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Solution

The fourth proportional to 379,367.84, 569,090.06 and 123,189.69 is: 184,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,367.84 : 569,090.06 = 123,189.69 : x
  2. Step 2: Convert to fraction form
    379,367.84/569,090.06 = 123,189.69/x
  3. Step 3: Cross multiply
    379,367.84x = 569,090.06 × 123,189.69
  4. Step 4: Simplify right side
    379,367.84x = 70,106,027,457.53
  5. Step 5: Solve for x
    x = 70,106,027,457.53/379,367.84
  6. Step 6: Final answer
    x = 184,796.97

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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.