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Finding the Fourth Proportional to 296,580.37, 444,913.94 and 86,190.97

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Solution

The fourth proportional to 296,580.37, 444,913.94 and 86,190.97 is: 129,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,580.37 : 444,913.94 = 86,190.97 : x
  2. Step 2: Convert to fraction form
    296,580.37/444,913.94 = 86,190.97/x
  3. Step 3: Cross multiply
    296,580.37x = 444,913.94 × 86,190.97
  4. Step 4: Simplify right side
    296,580.37x = 38,347,564,055.12
  5. Step 5: Solve for x
    x = 38,347,564,055.12/296,580.37
  6. Step 6: Final answer
    x = 129,299.06

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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.