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Finding the Fourth Proportional to 306,687.30, 423,273.66 and 184,187.94

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Solution

The fourth proportional to 306,687.30, 423,273.66 and 184,187.94 is: 254,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,687.30 : 423,273.66 = 184,187.94 : x
  2. Step 2: Convert to fraction form
    306,687.30/423,273.66 = 184,187.94/x
  3. Step 3: Cross multiply
    306,687.30x = 423,273.66 × 184,187.94
  4. Step 4: Simplify right side
    306,687.30x = 77,961,903,491.66
  5. Step 5: Solve for x
    x = 77,961,903,491.66/306,687.30
  6. Step 6: Final answer
    x = 254,206.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.